Ossi Kaario

Associate Professor
Associate Professor
T212 Department of Energy and Mechanical Engineering
Full researcher profile
https://research.aalto.fi/...
Sähköposti
[email protected]
Puhelinnumero
+358503012051

Osaamisalueet

Combustion, Sprays, CFD, Numerical modelling, Internal combustion engines, LES, Turbulence, Large Eddy Simulation, RANS

Tutkimusryhmät

  • Energiakonversio ja järjestelmät, Professori (Associate Professor)

Julkaisut

Ammonia as a sustainable fuel

Qiang Cheng, Akram Muhammad, Ossi Kaario, Zeeshan Ahmad, Larmi Martti 2025 Renewable and Sustainable Energy Reviews

Experimental Study on Engine Performance Fueled with Ammonia-Hydrogen Blend Ignited by Diesel Pilot

Muhammad Saad Akram, Qiang Cheng, Maryam Yeganeh, Ossi Kaario, Martti Larmi 2024 SAE Technical Papers

Superheated fuel sprays : A comparative study of flash boiling ammonia fuel sprays with methanol, ethanol, and gasoline for multi-hole fuel injection

Muhammad Saad Akram, Qiang Cheng, Ossi Kaario, Martti Larmi 2024 Case Studies in Thermal Engineering

Fuel-air mixing in motored CFR engine at research octane number (RON) relevant condition

Atmadeep Bhattacharya, Karri Keskinen, Martti Larmi, Pinaki Pal, Yuri Kroyan, Teemu Sarjovaara, Ossi Kaario 2024 International Journal of Engine Research

Spray Ignition of Primary Reference Fuels Blended with Ethanol and 2,5-Dimethylfuran

Atmadeep Bhattacharya, Ossi Kaario, Basem Eraqi, Shashank Sakleshpur Nagaraja, Mani Sarathy 2024 SAE Technical Papers

2D Diesel Spray Droplet Size Mapping Based on Planar Laser Induced Fluorescence and Mie-Scattering Technique Using Sparsity Deconvolution

Qiang Cheng, Viljam Grahn, Muhammad Akram, Jari Hyvonen, Ossi Kaario, Martti Larmi 2024 SAE Technical Papers

Embedded direct numerical simulation of ignition kernel evolution and flame initiation in dual-fuel spray assisted combustion

Mahmoud Gadalla, Shervin Karimkashi, Islam Kabil, Ossi Kaario, Tianfeng Lu, Ville Vuorinen 2024 Combustion and Flame

A comparative study on methanol and n-dodecane spray flames using Large-Eddy Simulation

Ossi Tapani Kaario, Shervin Karimkashi, Atmadeep Bhattacharya, Ville Vuorinen, Martti Larmi, Xue Song Bai 2024 Combustion and Flame

A skeletal mechanism for n-dodecane/ammonia combustion and an open-source reaction scheme optimization tool

Adnan Tolga Kurumus, Atmadeep Bhattacharya, Parsa Tamadonfar, Ossi Kaario 2024 Fuel

LES-TFM modeling of hydrogen combustion in internal combustion engines

Bayazid Mahmoodi, Parsa Tamadonfar, Atmadeep Bhattacharya, Ossi Kaario 2024 THIESEL 2024 Conference on Thermo- and Fluid Dyamics of Clean Propulsion Powerplants

Super adiabatic combustion of H2/Air and H2/N2O mixtures

Jennifer Schurr, Atmadeep Bhattacharya, Alexander A. Konnov, Ossi Kaario 2024 Combustion and Flame

Temperature Stratification Induced Ignition Regimes for Gasoline Surrogates at Engine-Relevant Conditions

Ali Shahanaghi, Shervin Karimkashi, Ossi Kaario, Ville Vuorinen, Teemu Sarjovaara, Rupali Tripathi 2024 Combustion Science and Technology

Impact of modelling assumptions in cavitating flow of simplified injector

Stanislau Stasheuski, Karri Keskinen, David P. Schmidt, Ville Vuorinen, Jari Hyvönen, Ossi Kaario 2024 International Journal of Multiphase Flow

A numerical study on premixed laminar ammonia/air flames enriched with hydrogen : An analysis on flame–wall interaction

Parsa Tamadonfar, Shervin Karimkashi, Thorsten Zirwes, Ville Vuorinen, Ossi Kaario 2024 Combustion and Flame

A study of flame dynamics and structure in premixed turbulent planar NH3/H2/air flames

Parsa Tamadonfar, Shervin Karimkashi, Ossi Kaario, Ville Vuorinen 2024 International Journal of Engine Research

Experimental investigations of hydrogen pre-ignition phenomenon induced by two different lubricating oils in a rapid compression expansion machine

Maryam Yeganeh, Kristian Rönn, Shervin Karimkashi, Qiang Cheng, Ponnya Hlaing, Jari Hyvönen, Ville Vuorinen, Ossi Kaario, Martti Larmi 2024 Proceedings of the Combustion Institute

Experimental study of hydrogen jet dynamics : Investigating free momentum and impingement phenomena

Maryam Yeganeh, Muhammad Saad Akram, Qiang Cheng, Shervin Karimkashi, Ossi Kaario, Martti Larmi 2024 International Journal of Hydrogen Energy

Experimental Study on Flash Boiling of Ammonia Fuel Sprays - A Potential Alternative Fuel

Muhammad Saad Akram, Maryam Yeganeh, Qiang Cheng, Ossi Kaario, Martti Larmi 2023 SAE Technical Papers

On the super adiabatic flame temperature (SAFT) of toluene primary reference fuels

Giang Bui, Atmadeep Bhattacharya, Ossi Kaario, Ville Vuorinen, Rupali Tripathi, Teemu Sarjovaara 2023 Fuel

Hyperspectral image reconstruction from colored natural flame luminosity imaging in a tri-fuel optical engine

Qiang Cheng, Shervin Karimkashi, Zeeshan Ahmad, Ossi Kaario, Ville Vuorinen, Martti Larmi 2023 Scientific Reports

Optical Investigation of the Diesel Spray Characteristics and Spray Geometry Prediction Model by Artificial Neural Network

Qiang Cheng, Zeeshan Ahmad, Viljam Grahn, Jari Hyvönen, Ossi Kaario, Martti Larmi 2023 SAE Technical Papers

Numerical evidence on deflagration fronts in a methane/n-dodecane dual-fuel shear layer under engine relevant conditions

Jeevananthan Kannan, Shervin Karimkashi, Mahmoud Gadalla, Ossi Kaario, Ville Vuorinen 2023 Fuel

Large-eddy simulation of diesel pilot spray ignition in lean methane-air and methanol-air mixtures at different ambient temperatures

Shervin Karimkashi, Mahmoud Gadalla, Jeevananthan Kannan, Bulut Tekgül, Ossi Kaario, Ville Vuorinen 2023 International Journal of Engine Research

A Numerical Investigation on Effects of Hydrogen Enrichment and Turbulence on NO Formation Pathways in Premixed Ammonia/Air Flames

Shervin Karimkashi Arani, Parsa Tamadonfar, Ossi Kaario, Ville Vuorinen 2023 Combustion Science and Technology

Large-eddy simulation of buoyant airflow in an airborne pathogen transmission scenario

Alpo Laitinen, Marko Korhonen, Karri Keskinen, Ossi Kaario, Ville Vuorinen 2023 Building and Environment

Low-speed pre-ignition and super-knock in boosted spark-ignition engines : A review

Kristian Rönn, Andre Swarts, Vickey Kalaskar, Terry Alger, Rupali Tripathi, Juha Keskiväli, Ossi Kaario, Annukka Santasalo-Aarnio, Rolf Reitz, Martti Larmi 2023 Progress in Energy and Combustion Science

A Diagnostic Approach to Assess the Effect of Temperature Stratification on the Combustion Modes of Gasoline Surrogates

Ali Shahanaghi, Shervin Karimkashi, Ossi Kaario, Ville Vuorinen, Rupali Tripathi, Teemu Sarjovaara 2023 Combustion Science and Technology

Efficient two-dimensional simulation of primary reference fuel ignition under engine-relevant thermal stratification

A. Shahanaghi, S. Karimkashi, O. Kaario, V. Vuorinen 2023 PHYSICS OF FLUIDS

A Numerical Study on Premixed Turbulent Planar Ammonia/Air and Ammonia/Hydrogen/Air Flames : An Analysis on Flame Displacement Speed and Burning Velocity

Parsa Tamadonfar, Shervin Karimkashi, Ossi Kaario, Ville Vuorinen 2023 Flow Turbulence and Combustion

Prediction of heavy-duty engine performance for renewable fuels based on fuel property characteristics

Michał Wojcieszyk, Yuri Kroyan, Ossi Kaario, Martti Larmi 2023 Energy

Experimental and Numerical Study of a Low-Pressure Hydrogen Jet under the Effect of Nozzle Geometry and Pressure Ratio

Maryam Yeganeh, Samuel Rabensteiner, Shervin Karimkashi, Qiang Cheng, Ossi Kaario, Martti Larmi 2023 SAE Technical Papers

Visualization and comparison of methane and hydrogen jet dynamics using schlieren imaging

Maryam Yeganeh, Qiang Cheng, Aishwarya Dharamsi, Shervin Karimkashi Arani, Juho Kuusela-Opas, Ossi Kaario, Martti Larmi 2023 Fuel

Dynamics of the Ammonia Spray Using High-Speed Schlieren Imaging

Qiang Cheng, Katriina Ojanen, Yantao Diao, Ossi Kaario, Martti Larmi 2022 SAE Technical Papers

Effect of Hydrogen Enhancement on Natural Flame Luminosity of Tri-Fuel Combustion in an Optical Engine

Qiang Cheng, Zeeshan Ahmad, Ossi Kaario, Ville Vuorinen, Martti Larmi 2022 Energies

Effects of hydrogen enrichment and turbulence intensity on the combustion mode in locally stratified dual-fuel mixtures of n-dodecane/methane

Shervin Karimkashi Arani, Ossi Kaario, Ville Vuorinen 2022 Applications in Energy and Combustion Science

Effects of wet combustion on NOx emissions reduction in laminar premixed ammonia/hydrogen/air flames: an analysis of NO formation pathways

Shervin Karimkashi Arani, Parsa Tamadonfar, Ossi Kaario, Ville Vuorinen 2022 1st Symposium on Ammonia Energy

The Impact of Octane Number Boosters on Knock Characteristics in a Cooperative Fuel Research (CFR) Engine

Karri Keskinen, Atmadeep Bhattacharya, Ossi Kaario, Otto Blomstedt, Olli Ranta, Rupali Tripathi, Teemu Sarjovaara 2022 SAE Technical Papers

Modelling the end-use performance of alternative fuel properties in flex-fuel vehicles

Yuri Kroyan, Michał Wojcieszyk, Ossi Kaario, Martti Larmi 2022 Energy Conversion and Management

Fast reactive flow simulations using analytical Jacobian and dynamic load balancing in OpenFOAM

Ilya Morev, Bulut Tekgül, Mahmoud Gadalla, Ali Shahanaghi, Jeevananthan Kannan, Shervin Karimkashi, Ossi Kaario, Ville Vuorinen 2022 PHYSICS OF FLUIDS

A Study of Flame Dynamics and Structure in Premixed Turbulent Planar NH3/H2/Air Flames

Parsa Tamadonfar, Shervin Karimkashi Arani, Ossi Kaario, Ville Vuorinen 2022 THIESEL 2022 Conference on Thermo- and Fluid Dynamics of Clean Propulsion Powerplants

Inner Flame Front Structures and Burning Velocities of Premixed Turbulent Planar Ammonia/Air and Methane/Air Flames

Parsa Tamadonfar, Shervin Karimkashi, Ossi Kaario, Ville Vuorinen 2022 FLOW TURBULENCE AND COMBUSTION

Large-eddy simulation of split injection strategies in RCCI conditions

Bulut Tekgul, Shervin Karimkashi, Ossi Kaario, Heikki Kahila, Eric Lendormy, Jari Hyvönen, Ville Vuorinen 2022 Combustion Theory and Modelling

Experimental and Numerical Investigation of Hydrogen Jet-Wall Impingement

Maria Yeganeh, Samuel Rabensteiner, Qiang Cheng, Olli Ranta, Shervin Karimkashi Arani, Ossi Kaario, Martti Larmi 2022 SAE Technical Papers

Effect of pilot fuel properties on lean dual-fuel combustion and emission characteristics in a heavy-duty engine

Zeeshan Ahmad, Ossi Kaario, Cheng Qiang, Martti Larmi 2021 Applied Energy

Effects of ethane addition on diesel-methane dual-fuel combustion in a heavy-duty engine

Zeeshan Ahmad, Ossi Kaario, Shervin Karimkashi, Cheng Qiang, Ville Vuorinen, Martti Larmi 2021 Fuel

Optical fuel spray characterization of hydrotreated vegetable oil, en590 diesel, and ethanol

Muhammad Saad Akram, Ari Ainsalo, Teemu Anttinen, Ossi Kaario, Martti Larmi 2021 Atomization and Sprays

Effects of blending 2,5-dimethylfuran and dimethyl ether to toluene primary reference fuels

Atmadeep Bhattacharya, Ali Shahanaghi, Ossi Kaario, Ville Vuorinen, Rupali Tripathi, Teemu Sarjovaara 2021 Fuel

Effect of pilot fuel properties on engine performance and combustion stability in a tri-fuel engine powered by premixed methane-hydrogen and diesel pilot

Qiang Cheng, Ossi Kaario, Zeeshan Ahmad, Ville Vuorinen, Martti Larmi 2021 International Journal of Hydrogen Energy

Experimental study on tri-fuel combustion using premixed methane-hydrogen mixtures ignited by a diesel pilot

Qiang Cheng, Zeeshan Ahmad, Ossi Kaario, Ville Vuorinen, Martti Larmi 2021 International Journal of Hydrogen Energy

Large-eddy simulation of tri-fuel combustion

Mahmoud Gadalla, Jeevananthan Kannan, Bulut Tekgul, Shervin Karimkashi, Ossi Kaario, Ville Vuorinen 2021 International Journal of Hydrogen Energy

A numerical performance study of a fixed-bed reactor for methanol synthesis by CO2 hydrogenation

Daulet Izbassarov, Judit Nyári, Bulut Tekgül, Erkki Laurila, Tanja Kallio, Annukka Santasalo-Aarnio, Ossi Kaario, Ville Vuorinen 2021 International Journal of Hydrogen Energy

Large-eddy simulation of tri-fuel ignition

Jeevananthan Kannan, Mahmoud Gadalla, Bulut Tekgül, Shervin Karimkashi, Ossi Kaario, Ville Vuorinen 2021 Combustion Theory and Modelling

Methanol as a hydrogen carrier

Martti Larmi, Michal Wojcieszyk, Annukka Santasalo-Aarnio, Judit Nyari, Zeeshan Ahmad, Ossi Kaario, Markus Laitinen 2021 NACHHALTIGKEIT IN MOBILITÄT, TRANSPORT UND ENERGIEERZEUGUNG

DLBFoam

Bulut Tekgül, Petteri Peltonen, Heikki Kahila, Ossi Kaario, Ville Vuorinen 2021 Computer Physics Communications

Large-eddy simulation of spray assisted dual-fuel ignition under reactivity-controlled dynamic conditions

Bulut Tekgül, Heikki Kahila, Shervin Karimkashi, Ossi Kaario, Zeeshan Ahmad, Éric Lendormy, Jari Hyvönen, Ville Vuorinen 2021 Fuel

Impact of Ethane Enrichment on Diesel-Methane Dual-Fuel Combustion

Zeeshan Ahmad, Ossi Kaario, Qiang Cheng, Martti Larmi 2020 SAE Technical Papers

Analysis of Gasoline Surrogate Combustion Chemistry with a Skeletal Mechanism

Atmadeep Bhattacharya, Ossi Kaario, Ville Vuorinen, Rupali Tripathi, Teemu Sarjovaara 2020 SAE Technical Papers

High-pressure direct injection of methanol and pilot diesel

Yabin Dong, Ossi Kaario, Ghulam Hassan, Olli Ranta, Martti Larmi, Bengt Johansson 2020 Fuel

Large-Eddy Simulation of ECN Spray A

Mahmoud Gadalla, Jeevananthan Kannan, Bulut Tekgul, Shervin Karimkashi, Ossi Kaario, Ville Vuorinen 2020 Energies

Large eddy simulation of diesel spray–assisted dual-fuel ignition

Jeevananthan Kannan, Mahmoud Gadalla, Bulut Tekgül, Shervin Karimkashi, Ossi Kaario, Ville Vuorinen 2020 International Journal of Engine Research

A numerical study on combustion mode characterization for locally stratified dual-fuel mixtures

Shervin Karimkashi, Heikki Kahila, Ossi Kaario, Martti Larmi, Ville Vuorinen 2020 Combustion and Flame

Numerical study on tri-fuel combustion

Shervin Karimkashi, Heikki Kahila, Ossi Kaario, Martti Larmi, Ville Vuorinen 2020 International Journal of Hydrogen Energy

Blending Behavior of Hydrocarbon and Oxygenate Molecules to Optimize RON and MON for Modern Spark-Ignition Engines (SI)

Lotta Knuutila, Ossi Kaario, Martti Larmi, Annukka Santasalo-Aarnio, Anna Karvo, Ulla Kiiski 2020 SAE Technical Papers

Modeling the end-use performance of alternative fuels in light-duty vehicles

Yuri Kroyan, Michal Wojcieszyk, Ossi Kaario, Martti Larmi, Kai Zenger 2020 Energy

Application of Synthetic Renewable Methanol to Power the Future Propulsion

Annukka Santasalo-Aarnio, Judit Nyari, Michal Wojcieszyk, Ossi Kaario, Yuri Kroyan, Mohamed Magdeldin, Martti Larmi, Mika Järvinen 2020 SAE Technical Papers

Large-eddy simulation of dual-fuel spray ignition at different ambient temperatures

Bulut Tekgül, Heikki Kahila, Ossi Kaario, Ville Vuorinen 2020 Combustion and Flame

Large-eddy simulation of underexpanded natural gas jets

V. Vuorinen, C. Duwig, O. Kaario, M. Larmi, B. J. Boersma 2020

Modelling aerosol transport and virus exposure with numerical simulations in relation to SARS-CoV-2 transmission by inhalation indoors

Ville Vuorinen, Mia Aarnio, Mikko Alava, Ville Alopaeus, Nina Atanasova, Mikko Auvinen, Nallannan Balasubramanian, Hadi Bordbar, Panu Erästö, Rafael Grande, Nick Hayward, Antti Hellsten, Simo Hostikka, Jyrki Hokkanen, Ossi Kaario, Aku Karvinen, Ilkka Kivistö, Marko Korhonen, Risto Kosonen, Janne Kuusela, Sami Lestinen, Erkki Laurila, Heikki J. Nieminen, Petteri Peltonen, Juho Pokki, Antti Puisto, Peter Råback, Henri Salmenjoki, Tarja Sironen, Monika Österberg 2020 Safety Science

A parametric investigation of diesel/methane dual-fuel combustion progression/stages in a heavy-duty optical engine

Zeeshan Ahmad, Ossi Kaario, Cheng Qiang, Ville Vuorinen, Martti Larmi 2019 Applied Energy

Optical investigation of spray characteristics for light fuel oil, kerosene, hexane, methanol and propane

Ari Ainsalo, Reetu Sallinen, Ossi Kaario, Martti Larmi 2019 Atomization and Sprays

Cycle-to-cycle variations of dual-fuel combustion in an optically accessible engine

Qiang Cheng, Zeeshan Ahmad, Ossi Kaario, Martti Larmi 2019 Applied Energy

HVO, RME and diesel fuel combustion in an optically accessible compression ignition engine

Qiang Cheng, Tuomo Hulkkonen, Ossi Kaario, Martti Larmi 2019 Energy and Fuels

Spray dynamics of HVO and EN590 diesel fuels

Qiang Cheng, Tuomo Hulkkonen, Ossi Kaario, Martti Larmi 2019 Fuel

Modeling cycle-to-cycle variations in spark ignited combustion engines by scale-resolving simulations for different engine speeds

M. Ghaderi Masouleh, Karri Keskinen, O. Kaario, H. Kahila, S. Karimkashi, V. Vuorinen 2019 Applied Energy

The effect of fuel on high velocity evaporating fuel sprays

Ossi Tapani Kaario, Ville Vuorinen, Heikki Kahila, Hong G. Im, Martti Larmi 2019 International Journal of Engine Research

A large-eddy simulation study on the influence of diesel pilot spray quantity on methane-air flame initiation

H. Kahila, O. Kaario, Z. Ahmad, M. Ghaderi Masouleh, B. Tekgül, M. Larmi, V. Vuorinen 2019 Combustion and Flame

Large-eddy simulation of dual-fuel ignition

Heikki Kahila, Armin Wehrfritz, Ossi Kaario, Ville Vuorinen 2019 Combustion and Flame

Modeling the Impact of Alternative Fuel Properties on Light Vehicle Engine Performance and Greenhouse Gases Emissions

Yuri Kroyan, Michal Wojcieszyk, Martti Larmi, Ossi Kaario, Kai Zenger 2019 SAE Technical Papers

Effect of Alternative Fuels on Marine Engine Performance

Michal Wojcieszyk, Yuri Kroyan, Martti Larmi, Ossi Kaario, Kai Zenger 2019 SAE Technical Papers

An Optical Characterization of Dual-Fuel Combustion in a Heavy-Duty Diesel Engine

Zeeshan Ahmad, Janak Aryal, Olli Ranta, Ossi Kaario, Ville Vuorinen, Martti Larmi 2018 SAE Technical Papers

Flow and thermal field effects on cycle-to-cycle variation of combustion

M. Ghaderi Masouleh, K. Keskinen, O. Kaario, H. Kahila, Y. M. Wright, V. Vuorinen 2018 Applied Energy

Emission reduction methods and split fuel injection in a marine four-stroke engine

Matteo Imperato, Ossi Kaario, Martti Larmi, Teemu Sarjovaara 2018 Journal of Marine Science and Technology

Large-Eddy Simulation on the Influence of Injection Pressure in Reacting Spray A

Heikki Kahila, Armin Wehrfritz, Ossi Kaario, Mahdi Ghaderi Masouleh, Noud Maes, Bart Somers, Ville Vuorinen 2018 Combustion and Flame

Numerical assessment of wall modelling approaches in scale-resolving in-cylinder simulations

Karri Keskinen, Jann Koch, Yuri M. Wright, Martin Schmitt, Mika Nuutinen, Ossi Kaario, Ville Vuorinen, Martti Larmi, Konstantinos Boulouchos 2018 International Journal of Heat and Fluid Flow

Biofuel blend late post-injection effects on oil dilution and diesel oxidation catalyst performance

Aki Tilli, Tuomo Hulkkonen, Ossi Kaario, Martti Larmi, Teemu Sarjovaara, Kalle Lehto 2018 International Journal of Engine Research

An Optical Investigation of Diesel-Pilot and Methane Dual-Fuel Combustion

Zeeshan Ahmad, Janak Aryal, Olli Ranta, Ossi Kaario, Martti Larmi 2017

Comparative study on chemical kinetic schemes for dual-fuel combustion of n-dodecane/methane blends

M. Ghaderi Masouleh, A. Wehrfritz, O. Kaario, H. Kahila, V. Vuorinen 2017 Fuel

A New Approach for Modeling Coke Particle Emissions from Large Diesel Engines Using Heavy Fuel Oil

Kristian Hentelä, Ossi Kaario, Vikram Garaniya, Laurie Goldsworthy, Martti Larmi 2017 Proceedings of the SAE 2017 International Powertrains, Fuels and Lubricants Meeting

Late post-injection of biofuel blends in an optical diesel engine

Tuomo Hulkkonen, Aki Tilli, Ossi Kaario, Olli Ranta, Teemu Sarjovaara, Ville Vuorinen, Martti Larmi, Kalle Lehto 2017 International Journal of Engine Research

Mixing and evaporation analysis of a high-pressure SCR system using a hybrid LES-RANS approach

Ossi Tapani Kaario, Ville Vuorinen, Lei Zhu, Martti Larmi, Ronghou Liu 2017 Energy

Hybrid LES/RANS with wall treatment in tangential and impinging flow configurations

Karri Keskinen, Mika Nuutinen, Ossi Kaario, Ville Vuorinen, Jann Koch, Yuri M. Wright, Martti Larmi, Konstantinos Boulouchos 2017 International Journal of Heat and Fluid Flow

Dual-Fuel Combustion Characterization on Lean Conditions and High Loads

Rasmus Pettinen, Ossi Kaario, Martti Larmi 2017 Proceedings of the SAE World Congress Experience, WCX'17

Influence of the in-cylinder gas density and fuel injection pressure on the combustion characteristics in a large-bore diesel engine

Matteo Imperato, Ossi Kaario, Teemu Sarjovaara, Martti Larmi 2016 International Journal of Engine Research

Split fuel injection and Miller cycle in a large-bore engine

Matteo Imperato, Ossi Kaario, Teemu Sarjovaara, Martti Larmi 2016 Applied Energy

Influence of mesh deformation on the quality of large eddy simulations

Jukka Pekka Keskinen, Ville Vuorinen, Ossi Kaario, Martti Larmi 2016 International Journal for Numerical Methods in Fluids

Mixture formation in a direct injection gas engine

Karri Keskinen, Ossi Kaario, Mika Nuutinen, Ville Vuorinen, Zaira Künsch, Lars Ola Liavåg, Martti Larmi 2016 Energy

Nonlinear time series analysis from large eddy simulation of an internal combustion engine

Jukka-Pekka Keskinen, Ville Vuorinen, Ossi Kaario 2016 International Journal of Heat and Fluid Flow

Modeling and simulation of air-assist atomizers with applications to food sprays

Franz X. Tanner, Kathleen Feigl, Ossi Kaario, Erich J. Windhab 2016 Applied Mathematical Modelling

Large Eddy Simulation of n-dodecane spray flames using Flamelet Generated Manifolds

Armin Wehrfritz, Ossi Kaario, Ville Vuorinen, Bart Somers 2016 Combustion and Flame

Experimental study of conical diesel nozzle orifice geometry

Tuomo Hulkkonen, Teemu Sarjovaara, Ossi Kaario, Martti Larmi, Ismo Hämäläinen 2015 Atomization and Sprays

Partially premixed combustion in a low load operated power plant engine

Kendra Shrestha, O. Kaario, M. Imperato, T. Sarjovaara, M. Larmi, L. Liavåg, C. Wik 2015 Industrial Combustion

Comparing Breakup Models in a Novel High Injection Pressure SCR System using Polyhedral Meshing

Ossi Kaario, Teemu Sarjovaara, Olli Ranta, Tuomo Hulkkonen, Karri Keskinen, Martti Larmi, Sauli Halonen, Arno Amberla 2014 SAE Technical Papers

Imbalance wall functions with density and material property variation effects applied to engine heat transfer computational fluid dynamics simulation

Mika Nuutinen, Ossi Kaario, Ville Vuorinen, Martti Larmi, Paul Nwosu 2014 International Journal of Engine Research

Modification of the CAB Model for Air-Assist Atomization of Food Sprays

F.X. Tanner, K.A. Feigl, O. Kaario, B. Dubey, E.J. Windhab 2014 ILASS Americas 26th Annual Conference on Liquid Atomization and Spray Systems, Portland OR, May 2014

Turbulence During the Compression Stroke

Eero Antila, Ossi Kaario, Mika Nuutinen 2013 Cimac, Shanghai, Kiina, 13.-16.5.2013

Large Eddy Simulation of High Gas Density Effects in Fuel Sprays

Ossi Kaario, Ville Vuorinen, Tuomo Hulkkonen, Karri Keskinen, Mika Nuutinen, Martti Larmi, Franz Xavier Tanner 2013 Atomization and Sprays

Effects of Mesh Deformation on the Quality of Large Eddy Simulations

Jukka-Pekka Keskinen, Ville Vuorinen, Ossi Kaario, Martti Larmi 2013 AIAA Aerospace Sciences Fluid Sciences Event, San Diego, California, U.S.A., 24.-27.6.2013

Gas-Based Calibration of a Liquid Dispensing Device

Karri Keskinen, Ossi Kaario 2013 ILASS - Europe 2013, 25th European Conference on Liquid Atomization & Spray Systems

Partially Premixed Combustion (PPC) for low load conditions in a marine engine using computational and experimental technique.Paper # 288

Kendra Shrestha, Ossi Kaario, Matteo Imperato, Teemu Sarjovaara, Martti Larmi 2013 Cimac, Shanghai, Kiina, 13.-16.5.2013

Partially Premixed Combustion (PPC) for low load conditions in marine engine using computational and experimental techniques.

Kendra Shrestha, Ossi Kaario, Matteo Imperato, Teemu Sarjovaara, Martti Larmi 2013 Finnish - Swedish Flame Days, Jyväskylä, Finland, 17.-18.4.2013

Large-Eddy Simulation of Highly Underexpanded Transient Gas Jets

Ville Vuorinen, Yu Jingzhou, Santosh Tirunagari, Ossi Kaario, Martti Larmi, Duwig Christophe, Bendiks Boersma 2013 PHYSICS OF FLUIDS

LARGE EDDY SIMULATION OF HIGH-VELOCITY FUEL SPRAYS: STUDYING MESH RESOLUTION AND BREAKUP MODEL EFFECTS FOR SPRAY A

Armin Wehrfritz, Ville Vuorinen, Ossi Kaario, Martti Larmi 2013 Atomization and Sprays

Characteristics of high pressure jets for direct injection gas engine

Jingzhou Yu, Ville Vuorinen, Ossi Kaario, Teemu Sarjovaara, Martti Larmi 2013 SAE INTERNATIONAL JOURNAL OF FUELS AND LUBRICANTS

Visualization and analysis of the characteristics of transitional underexpanded jets

Jingzhou Yu, Ville Vuorinen, Ossi Kaario, Teemu Sarjovaara, Martti Larmi 2013 International Journal of Heat and Fluid Flow

Analyzing Local Combustion Environment with a Flamelet Model and Detailed Chemistry

Ossi Kaario, Anders Brink, Armin Wehrfritz, Martti Larmi 2012 SAE Technical Papers

Numerical and Experimental Investigation of Fuel Spray Behaviour in Very High Density Environment Using LES

Ossi Kaario, Tuomo Hulkkonen, Ville Vuorinen, Armin Wehrfritz, Karri Keskinen, Martti Larmi 2012 ICLASS, Heidelberg, Germany, 3.-6.9.2012

Improving the Accuracy of 1-D Fuel Injection Modeling

Karri Keskinen, Ossi Kaario, Aki Tilli, Tuomo Hulkkonen, Martti Larmi 2012 SAE Technical Papers

Large Eddy Simulation of the Intake Flow in a Realistic Single Cylinder Configuration

Jukka-Pekka Keskinen, Ville Vuorinen, Ossi Kaario, Martti Larmi 2012 SAE Technical Papers

Analysis of Proper Orthogonal Decomposition and Dynamic Mode Decomposition on LES of Subsonic Jets

Santosh Tirunagari, Ville Vuorinen, Ossi Kaario, Martti Larmi 2012 CSI Journal

Proper Orthogonal Decomposition Analysis of Cross Sectional Fuel Spray Data

Santosh Tirunagari, Tuomo Hulkkonen, Ville Vuorinen, Ossi Kaario, Martti Larmi 2012 ICLASS, Heidelberg, Germany, 3.-6.9.2012

A High Resolution Study of Non-Reacting Fuel Sprays using Large-Eddy Simulations

Armin Wehrfritz, Ville Vuorinen, Ossi Kaario, Martti Larmi 2012 International Conference on Liquid Atomization and Spray Systems; Heidelberg, Germany; September 2-6, 2012

An experimental investigation on the flow structure and mixture formation of low pressure ratio wall-impinging jets by a natural gas injector

Jingzhou Yu, Ville Vuorinen, Harri Hillamo, Teemu Sarjovaara, Ossi Kaario, Martti Larmi 2012 Journal of Natural Gas Science and Engineering

An Experimental Study on High Pressure Pulsed Jets for DI Gas Engine Using Planar Laser-Induced Fluorescence

Jingzhou Yu, Ville Vuorinen, Harri Hillamo, Teemu Sarjovaara, Ossi Kaario, Martti Larmi 2012 SAE Technical Papers

Effect of Turbulence Boundary Conditions to CFD Simulation

Ossi Kaario, Eero Antila, Kalle Lehto 2011 SAE Technical Papers

Studying Equivalence ratio - Temperature Maps in a Heavy-Duty Diesel Engine

Ossi Kaario, Anders Brink, Kalle Lehto, Karri Keskinen, Martti Larmi 2011 The Swedish-Finnish Flame Days, Piteå, Sweden 26. - 27.1.2011

Studying Local Conditions in a Heavy-Duty Diesel Engine by Creating Phi-T Maps

Ossi Kaario, Anders Brink, Kalle Lehto, Karri Keskinen, Martti Larmi 2011 SAE Technical Papers

Effect of Droplet Size and Atomization on Spray Formation

Ville Anton Vuorinen, Harri Hillamo, Ossi Kaario, Mika Nuutinen, Martti Larmi, Laszlo Fuchs 2011 FLOW TURBULENCE AND COMBUSTION

Large-Eddy Simulation of Compressible Jets Using Eulerian-Eulerian Approach

Ville Vuorinen, C Duwig, Ossi Kaario, Martti Larmi, Laslo Fucgs 2011 ILASS - Europe 2011, 24th European Conference on Liquid Atomization and Spray Systems, Estoril, Portugal september 5-7, 2011

Large-Eddy Simulation of Subsonic Jets

Ville Vuorinen, Armin Wehrfritz, Jingzhou Yu, Ossi Kaario, Martti Larmi, Bendiks Jan Boersma 2011 Journal of Physics: Conference Series

Interaction of multiple Fuel Sprays in a Heavy-Duty Diesel Engine

Armin Wehrfritz, Ossi Kaario, Ville Vuorinen, Aki Tilli, Martti Larmi 2011 SAE Technical Papers

Experimental Investigation of Characteristics of Transient Low Pressure Wall-impinging Gas Jet

Jingzhou Yu, Harri Hillamo, Ville Vuorinen, Teemu Sarjovaara, Ossi Kaario, Martti Larmi 2011 The 13th European Turbulence Conference, Warsaw, Poland, September 12-15, 2011

Experimental Study on Structure and Mixing of Low-Pressure Gas Jet Using Tracer-Based PLIF Technique

Jingzhou Yu, Harri Hillamo, Teemu Sarjovaara, Tuomo Hulkkonen, Ossi Kaario, Martti Larmi 2011 SAE Technical Papers

Effect of Intake Channel design to Cylinder Charge and Initial Swirl

Eero Antila, Ossi Kaario, Matteo Imperato, Martti Larmi 2010 SAE Technical Papers

Effect on Intake Channel Design to Cylinder Charge and Initial Swirl

Eero Antila, Ossi Kaario, Matteo Imperato, Martti Larmi 2010 CIMAC Congress, Bergen, 2010

Large eddy simulations of hydrotreated vegetable oil sprays using OpenFOAM

Yejun Gong, Franz Tanner, Ossi Kaario, Martti Larmi 2010 International Multidimensional Engine Modeling Meeting, Detroit, USA, April 4, 2010

Diesel Spray Visualization and Shockwaves

Harri Hillamo, Teemu Sarjovaata, Ossi Kaario, Ville Vuorinen, Martti Larmi 2010 Atomization and Sprays

Experimental and Computational Consideration of Fuel Spray Mixing

Harri Hillamo, Ville Vuorinen, Teemu Sarjovaara, Ossi Kaario, Martti Larmi 2010 26th CIMAC World Congress on Combustion Engine Technology, June 14-17, 2010, Bergen, Norway

Real gas effects in high-pressure engine environment

Ossi Kaario, Mika Nuutinen, Kalle Lehto, Martti Larmi 2010 SAE International journal of Engines

The Design of a New Generation Medium- Speed Research Engine

Ossi Kaario, Matteo Imperato, Aki Tilli, Kalle Lehto, Olli Ranta, Eero Antila, Antti Elonheimo, Teemu Sarjovaara, Mika Nuutinen, Martti Larmi, Tommy Rönnskog, Sakari Pisilä, Jukka Tiainen, Ilari Kallio, Harri Rinta-Torala 2010 CIMAC Congress, Bergen, Norge, June 14-17, 2010

Advanced Heat Transfer Modeling with Application to CI Engine CFD Simulations

Mika Nuutinen, Ossi Kaario, Martti Larmi 2010 CIMAC World Congress, Bergen, Norway, June 14-17, 2010

Large-Eddy Simulation of Droplet Stokes Number Effects on Mixture Quality in Fuel Sprays

Ville Vuorinen, Harri Hillamo, Ossi Kaario, Mika Nuutinen, Martti Larmi, Laszlo Fuchs 2010 Atomization and Sprays

Large-Eddy Simulation of Droplet Stokes Number Effects on Turbulent Spray Shape

Ville Vuorinen, Harri Hillamo, Ossi Kaario, Martti Larmi, Laszlo Fuchs 2010 Atomization and Sprays

Investigations on Engine Flow Fields and Combustion

Harri Hillamo, Teemu Sarjovaara, Ossi Kaario, Martti Larmi 2009 Finnish-Swedish Flame Days 2009, January 28 - 29, 2009, Naantali, Finland

NOx Reduction in a Medium-Speed Single-Cylinder Diesel engine using Miller cycle with Very Advanced Valve Timing

Matteo Imperato, Eero Antila, Teemu Sarjovaara, Ossi Kaario, Martti Larmi, Ilari Kallio, Sten Isaksson 2009 SAE Technical Paper Series

Computational Considerations of Fuel Spray Mixing in an HCCI Operated Optical Diesel Engine

Ossi Kaario, Eero Antila, Kalle Lehto, Ville Vuorinen, Martti Larmi 2009 SAE Technical Paper Series

Liquid Spray Data from an Optical Medium-Speed Diesel Engine and its Comparison with CFD

Ossi Kaario, Aki Tilli, Harri Hillamo, Teemu Sarjovaara, Ville Vuorinen, Martti Larmi 2009 SAE Technical Paper Series

Sprays in combustion

Ossi Kaario, Martti Larmi 2009

High Cetane Number Paraffinic Diesel Fuels and Emission Reduction

Martti Larmi, Aki Tilli, Ossi Kaario, Yesun Gong, Teemu Sarjovaara, Harri Hillamo, Kari Häkkinen, Kalle Lehto, Anders Brink, Päivi Aakko-Saksa 2009 IEA Combustion Agreement - 31th Task Leaders Meeting, Lake Louise, Kanada, 20.-24.9.2009

Advances in Variable Density Wall Functions for Turbulent Flow CFD-Simulations, Emphasis on Heat Transfer

Mika Nuutinen, Ossi Kaario, Martti Larmi 2009 SAE Technical Paper Series

Biofuels in the Fuel Injection System of a Single-Cylinder Medium-Speed Diesel Engine

Aki Tilli, Ossi Kaario, Martti Larmi 2009 Finnish-Swedish Flame Days 2009, Naantali, Finland, 28. - 29.01.2009

Fuel Injection System Simulation with Renewable Diesel Fuels

Aki Tilli, Ossi Kaario, Matteo Imperato, Martti Larmi 2009 SAE Technical Paper Series

Effect of Droplet Size and Breakup on Spray Shape: A Priori Study Using Large-Eddy Simulation

Ville Vuorinen, Harri Hillamo, Ossi Kaario, M. Nuutinen, Martti Larmi, Laszlo Fuchs 2009 6th International Symposium on Turbulence, Heat and Mass Transfer, Rome, Italy, 14-18 September 2009

Fuel Spray Experiments and Large-Eddy Simulation of Droplet Size Effects on Spray Shape

Ville Vuorinen, Harri Hillamo, Ossi Kaario, Martti Larmi, Laszlo Fuchs 2009 IEA Combustion Agreement - 31st Task Leaders Meeting, Lake Louise, Kanada, 20.-24.9.2009

In Cylinder Flow Fields in Diesel Engine

Harri Hillamo, Teemu Sarjovaara, Ossi Kaario, Martti Larmi 2008 IEA Combustion Agreement -30th Task Leaders Meeting, Capri, Italy, 14. -18.9.2008

Particle Image Velocimetry Measurements of a Diesel Spray

Harri Hillamo, Ossi Kaario, Martti Larmi 2008 SAE Technical Papers

CFD Modeling of the Initial Turbulence prior to Combustion in a Large Bore Diesel Engine

Eric Lendormy, Ossi Kaario, Martti Larmi 2008 SAE Technical Papers

Conjugate Heat Transfer in CI Engine CFD Simulations

Mika Nuutinen, Ossi Kaario, Martti Larmi 2008 SAE Technical Papers

Recent Progress in Implicit Large-Eddy Simulation of Fuel Sprays with Focus on Droplet Size Effects

Ville Vuorinen, Ossi Kaario, Martti Larmi, Fuchs Laszlo 2008 IEA Combustion Agreement -30th task Leaders Meeting, Capri, Italy 15. -18.9.2008

Fuel Spray Characterization of a High Speed Diesel Engine

Harri Hillamo, Ossi Kaario 2007 Twenty-Nineth Task Leader´s Meeting of the International Energy Agency, Gembloux, Belgium, 5.9.2007

A Comparison of Characteristic Time Scale and Flame Area Evolution Combustion Models in Medium Speed Diesel Engines

Ossi Kaario, Lars Ola Liavag, Martti Larmi 2007 25th CIMAC World Congress on Combustion Engines, Vienna, Austria, 21-24 May 2007

In-Cylinder Flow Field of a Diesel Engine

Ossi Kaario, Eric Lendormy, Teemu Sarjovaara, Martti Larmi 2007 SAE Technical Papers

Cylinder Pressure Measurement via Indicating Cock

Raimo Turunen, Ossi Kaario, Gösta Liljenfeldt 2007 Cimac Conference, Vienna, Austria, 2007

Near Nozzle Diesel Spray Modeling and X-Ray Measurements

Ville Vuorinen, Martti Larmi, Eero Antila, Ossi Kaario, Essam El-Hannouny, Sreenath Gupta 2006 SAE Technical Papers

Applying Soot Phi-T Maps for Engineering CFD Applications in Diesel Engines

Ossi Kaario, Eero Antila, Martti Larmi 2005 SAE Technical Papers

In-cylinder flowfields of diesel engine

Ossi Kaario, Ari Saarinen, Teemu Sarjovaara, Martti Larmi 2005 Twenty-Seventh Task Leaders Meeting, International Energy Agency, Implementing Agreement on Energy Conservation and Emission Reduction in Combustion, Zurich, Sveitsi 19. - 21.9.2005

Mastering the Diesel Process

Eero Antila, Ossi Kaario, Pia Kilpinen, Tuukka Lahtinen, Martti Larmi, Heikki Pokela, Ari Saarinen, Krista Stalsberg-Zarling, Pertti Taskinen, Jukka Tiainen, Olli Toivanen 2004

CFD-Modeling of high- and medium speed internal combustion engines

Ossi Kaario, Jukka Tiainen, Martti Larmi 2004

CFD-Modeling of high- and medium speed internal combustion engines

Ossi Kaario, Jukka Tiainen, Martti Larmi 2004

CFD-Modeling of high- and medium speed internal combustion engines

Ossi Kaario, Jukka Tiainen, Martti Larmi 2004

LES and RNG Turbulence Modeling in DI Diesel Engines

Martti Larmi, Jukka Tiainen, Ossi Kaario, Heikki Pokela, Lars Kjäldman 2003 SAE Technical Papers

Non-Evaporating Liquid Spray Simulations with the ETAB and WAVE droplet Breakup models

O. Kaario, M. Larmi, F.X. Tanner 2002 18th Annual Conference on Liquid Atomization and Spray Systems, Zaragoza, Spain, 9-11 September 2002