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Nobuyuki Oshima
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Journal Articles

Direct Numerical Simulation On Millimeter-Sized Air Bubbles in Turbulent Channel Flow

Sangwon Kim, Nobuyuki Oshima, Hyun Jin Park, Yuichi Murai
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Photo Gallery
J. Fluids Eng. July 2024, 146(7): 070901.
Paper No: FE-23-1451
https://doi.org/10.1115/1.4065300
Published Online: April 16, 2024
View Articletitled, Direct Numerical Simulation On Millimeter-Sized Air Bubbles in Turbulent Channel Flow
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Topics: Bubbles, Channel flow, Computer simulation, Turbulence
Proceedings Papers

Analysis on Heat Transfer and Phase Change for Two-Phase Boiling Flow in Quenching Process

Lu Wang, Nobuyuki Oshima, Sangwon Kim
Proc. ASME. AJKFluids2019, Volume 5: Multiphase Flow, V005T05A036, July 28–August 1, 2019
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2019-4832
https://doi.org/10.1115/AJKFluids2019-4832
View Paper titled, Analysis on Heat Transfer and Phase Change for Two-Phase Boiling Flow in Quenching Process
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Topics: Boiling, Flow (Dynamics), Heat transfer, Quenching (Metalworking), Wall temperature, Heat flux, Bubbles, Heating, Vapors, Computer simulation
Proceedings Papers

Hydrodynamic Performance and Appendage Considerations of Wave-Piercing Planing Craft Overlapping Waves and Porpoising

Sang-Won Kim, Sang-Eui Lee, Gyoung-Woo Lee, Kwang-Cheol Seo, Nobuyuki Oshima
Proc. ASME. AJKFluids2019, Volume 2: Computational Fluid Dynamics, V002T02A037, July 28–August 1, 2019
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2019-4931
https://doi.org/10.1115/AJKFluids2019-4931
View Paper titled, Hydrodynamic Performance and Appendage Considerations of Wave-Piercing Planing Craft Overlapping Waves and Porpoising
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Topics: Waves
Proceedings Papers

Large Eddy Simulation of Turbulent Combustion Flows in a Methane-Hydrogen Gasturbine Combustor and NOx Prediction by its Database

Nobuyuki Oshima, Ryosuke Kishine, Takeo Oda
Proc. ASME. AJKFluids2019, Volume 2: Computational Fluid Dynamics, V002T02A058, July 28–August 1, 2019
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2019-5107
https://doi.org/10.1115/AJKFluids2019-5107
View Paper titled, Large Eddy Simulation of Turbulent Combustion Flows in a Methane-Hydrogen Gasturbine Combustor and NOx Prediction by its Database
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Topics: Combustion, Combustion chambers, Databases, Flow (Dynamics), Hydrogen, Large eddy simulation, Methane, Nitrogen oxides, Turbulence
Proceedings Papers

Large-Eddy Simulation With a New Flamelet Model for Partially Premixed Combustion in a Gas-Turbine Combustor

Keisuke Tanaka, Tomonari Sato, Nobuyuki Oshima, Jiun Kim, Yusuke Takahashi, Yasunori Iwai
Proc. ASME. POWER2017-ICOPE-17, Volume 1: Boilers and Heat Recovery Steam Generator; Combustion Turbines; Energy Water Sustainability; Fuels, Combustion and Material Handling; Heat Exchangers, Condensers, Cooling Systems, and Balance-of-Plant, V001T02A001, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: POWER-ICOPE2017-3141
https://doi.org/10.1115/POWER-ICOPE2017-3141
View Paper titled, Large-Eddy Simulation With a New Flamelet Model for Partially Premixed Combustion in a Gas-Turbine Combustor
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Topics: Combustion, Combustion chambers, Gas turbines, Large eddy simulation, Flames, Temperature, Diffusion flames, Scalars, Emissions, Equilibrium (Physics)
Proceedings Papers

Application of Large-Eddy Simulation and the Multi-Scalar Flamelet Approach to a Methane-Hydrogen Mixed-Combustion-Type Industrial Gas-Turbine Combustor

Ryosuke Kishine, Tenshi Sasaki, Nobuyuki Oshima, Saad Sibawayh, Kohshi Hirano, Takeo Oda
Proc. ASME. POWER2017-ICOPE-17, Volume 1: Boilers and Heat Recovery Steam Generator; Combustion Turbines; Energy Water Sustainability; Fuels, Combustion and Material Handling; Heat Exchangers, Condensers, Cooling Systems, and Balance-of-Plant, V001T02A002, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: POWER-ICOPE2017-3247
https://doi.org/10.1115/POWER-ICOPE2017-3247
View Paper titled, Application of Large-Eddy Simulation and the Multi-Scalar Flamelet Approach to a Methane-Hydrogen Mixed-Combustion-Type Industrial Gas-Turbine Combustor
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Topics: Combustion, Combustion chambers, Gas turbines, Hydrogen, Large eddy simulation, Methane, Scalars, Fuels, Inflow, Simulation
Proceedings Papers

Numerical Study of Plasma Flow Around a Reentry Vehicle During Atmospheric Reentry With an Unstructured Grid Solver

Reo Nakasato, Yusuke Takahashi, Nobuyuki Oshima
Proc. ASME. AJKFluids2015, Volume 1A: Symposia, Part 2, V01AT13A006, July 26–31, 2015
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2015-13593
https://doi.org/10.1115/AJKFluids2015-13593
View Paper titled, Numerical Study of Plasma Flow Around a Reentry Vehicle During Atmospheric Reentry With an Unstructured Grid Solver
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Topics: Flow (Dynamics), Plasmas (Ionized gases), Vehicles, Heating, Electromagnetic radiation, Shock (Mechanics), Shock waves, Chemical reactions, Computer software, Design
Proceedings Papers

Aerodynamic Simulation of Closed-Canopy-Type Parafoil for Martian Exploration Mission

Daiki Harada, Yusuke Takahashi, Nobuyuki Oshima, Kazuhiko Yamada
Proc. ASME. AJKFluids2015, Volume 1A: Symposia, Part 2, V01AT13A007, July 26–31, 2015
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2015-13595
https://doi.org/10.1115/AJKFluids2015-13595
View Paper titled, Aerodynamic Simulation of Closed-Canopy-Type Parafoil for Martian Exploration Mission
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Topics: Arches, Deformation, Drag (Fluid dynamics), Membranes, Particulate matter, Pressure, Reynolds number, Shapes, Simulation
Proceedings Papers

Removal of Shape Deformation in the Free Energy Based Lattice Boltzmann Method for Large Density Ratio

Jia-ming Gong, Nobuyuki Oshima, Yutaka Tabe
Proc. ASME. ICNMM2015, ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels, V001T03A010, July 6–9, 2015
Publisher: American Society of Mechanical Engineers
Paper No: ICNMM2015-48296
https://doi.org/10.1115/ICNMM2015-48296
View Paper titled, Removal of Shape Deformation in the Free Energy Based Lattice Boltzmann Method for Large Density Ratio
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Topics: Deformation, Density, Lattice Boltzmann methods, Shapes, Drops, Simulation, Water, Dynamics (Mechanics), Electrolytes, Fuel cells
Proceedings Papers

The Appropriate Blend Proportional Factor Value of Two Staggered Grids Used in the Free Energy Based LBM With Large Density Ratio

Jia-ming Gong, Nobuyuki Oshima, Yutaka Tabe
Proc. ASME. ICNMM2013, ASME 2013 11th International Conference on Nanochannels, Microchannels, and Minichannels, V001T12A006, June 16–19, 2013
Publisher: American Society of Mechanical Engineers
Paper No: ICNMM2013-73122
https://doi.org/10.1115/ICNMM2013-73122
View Paper titled, The Appropriate Blend Proportional Factor Value of Two Staggered Grids Used in the Free Energy Based LBM With Large Density Ratio
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Topics: Density, Shapes, Drops, Water, Deformation, Poisson equation, Two-phase flow
Proceedings Papers

The Cross Flow Mechanism in the Micro Channel of a Polymer Electrolyte Fuel Cell

K. M. Salahuddin, Nobuyuki Oshima, Litan Kumar Saha
Proc. ASME. ICNMM2013, ASME 2013 11th International Conference on Nanochannels, Microchannels, and Minichannels, V001T07A003, June 16–19, 2013
Publisher: American Society of Mechanical Engineers
Paper No: ICNMM2013-73115
https://doi.org/10.1115/ICNMM2013-73115
View Paper titled, The Cross Flow Mechanism in the Micro Channel of a Polymer Electrolyte Fuel Cell
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Topics: Cross-flow, Electrolytes, Fuel cells, Microchannels, Polymers, Gas diffusion layers, Gas flow, Flow (Dynamics), Oxygen, Current density
Proceedings Papers

Transient Analysis of Gas Distribution in the Anodic Flow Field in a Fuel Cell Stack

Yasushi Ichikawa, Nobuyuki Oshima
Proc. ASME. ICNMM2013, ASME 2013 11th International Conference on Nanochannels, Microchannels, and Minichannels, V001T07A007, June 16–19, 2013
Publisher: American Society of Mechanical Engineers
Paper No: ICNMM2013-73219
https://doi.org/10.1115/ICNMM2013-73219
View Paper titled, Transient Analysis of Gas Distribution in the Anodic Flow Field in a Fuel Cell Stack
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Topics: Flow (Dynamics), Fuel cells, Transient analysis, Hydrogen, Catalysts, Manifolds, Electrolytes, Carbon, Corrosion, Fluids
Proceedings Papers

Large-Eddy Simulation in an Industrial Gasturbine Combustor for NOx Prediction

Kohshi Hirano, Yoshiharu Nonaka, Yasuhiro Kinoshita, Nobuyuki Oshima, Kyohei Matsuya
Proc. ASME. GT2012, Volume 2: Combustion, Fuels and Emissions, Parts A and B, 673-682, June 11–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GT2012-68925
https://doi.org/10.1115/GT2012-68925
View Paper titled, Large-Eddy Simulation in an Industrial Gasturbine Combustor for NOx Prediction
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Topics: Combustion chambers, Large eddy simulation, Nitrogen oxides, Gas turbines, Emissions, Fuels, Stress, Engines, Flames, Temperature
Proceedings Papers

Decision of the Best Blend Proportional Factor Value of Two Staggered Grids Used in LBM for PEFC Simulation

Jia-ming Gong, Nobuyuki Oshima, Eru Kurihara, Yutaka Tabe
Proc. ASME. ICNMM2011, ASME 2011 9th International Conference on Nanochannels, Microchannels, and Minichannels, Volume 1, 239-248, June 19–22, 2011
Publisher: American Society of Mechanical Engineers
Paper No: ICNMM2011-58026
https://doi.org/10.1115/ICNMM2011-58026
View Paper titled, Decision of the Best Blend Proportional Factor Value of Two Staggered Grids Used in LBM for PEFC Simulation
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Topics: Deformation, Density, Drops, Electrolytes, Fuel cells, Lattice Boltzmann methods, Multiphase flow, Oscillations, Poisson equation, Polymers
Proceedings Papers

Numerical Simulation of NO Production in Gas-Turbine Combustor With Large-Eddy Simulation Using 2-Scalar Flamelet Approach

Shingo Nishida, Tomonori Yamamoto, Kazuhiro Tsukamoto, Nobuyuki Oshima
Proc. ASME. IDETC-CIE2009, Volume 2: 29th Computers and Information in Engineering Conference, Parts A and B, 285-293, August 30–September 2, 2009
Publisher: American Society of Mechanical Engineers
Paper No: DETC2009-87153
https://doi.org/10.1115/DETC2009-87153
View Paper titled, Numerical Simulation of NO Production in Gas-Turbine Combustor With Large-Eddy Simulation Using 2-Scalar Flamelet Approach
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Topics: Combustion chambers, Computer simulation, Gas turbines, Large eddy simulation, Scalars, Nitrogen oxides, Combustion, Temperature, Contamination, Emissions
Proceedings Papers

A New Level-Set Approach for Premixed Flame

Nobuyuki Oshima
Proc. ASME. IDETC-CIE2009, Volume 2: 29th Computers and Information in Engineering Conference, Parts A and B, 295-300, August 30–September 2, 2009
Publisher: American Society of Mechanical Engineers
Paper No: DETC2009-87223
https://doi.org/10.1115/DETC2009-87223
View Paper titled, A New Level-Set Approach for Premixed Flame
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Topics: Flames, Shapes, Simulation, Density, Diffusion (Physics)
Proceedings Papers

Water Transport in the MEA of a PEM Fuel Cell

JuanFang Liu, Nobuyuki Oshima, Eru Kurihara, LitanKumar Saha
Proc. ASME. FUELCELL2009, ASME 2009 7th International Conference on Fuel Cell Science, Engineering and Technology, 315-322, June 8–10, 2009
Publisher: American Society of Mechanical Engineers
Paper No: FuelCell2009-85061
https://doi.org/10.1115/FuelCell2009-85061
View Paper titled, Water Transport in the MEA of a PEM Fuel Cell
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Topics: Proton exchange membrane fuel cells, Water, Membranes, Catalysts, Diffusion (Physics), Anodes, Boundary-value problems, Current density, Diffusion processes, Diluents
Proceedings Papers

Numerical Simulation of Thermocapillary Convection in an Annular Pool of Silicone Oil Heated From Inner Wall

Wanyuan Shi, Nobuyuki Oshima, Nobuyuki Imaishi
Proc. ASME. HT2007, ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference, Volume 3, 19-23, July 8–12, 2007
Publisher: American Society of Mechanical Engineers
Paper No: HT2007-32709
https://doi.org/10.1115/HT2007-32709
View Paper titled, Numerical Simulation of Thermocapillary Convection in an Annular Pool of Silicone Oil Heated From Inner Wall
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Topics: Computer simulation, Convection, Silicones, Temperature, Rotation, Temperature gradient
Proceedings Papers

Effect of Operating Temperature on the Water Removal in a Polymer Electrolyte Fuel Cell

Wanyuan Shi, Nobuyuki Oshima, L. Kumar Saha, Eru Kurihara
Proc. ASME. MICRONANO2008, 2008 Second International Conference on Integration and Commercialization of Micro and Nanosystems, 387-393, June 3–5, 2008
Publisher: American Society of Mechanical Engineers
Paper No: MicroNano2008-70206
https://doi.org/10.1115/MicroNano2008-70206
View Paper titled, Effect of Operating Temperature on the Water Removal in a Polymer Electrolyte Fuel Cell
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Topics: Electrolytes, Fuel cells, Operating temperature, Polymers, Water, Gas diffusion layers, Temperature, Floods, Pressure, Steady state
Proceedings Papers

Numerical Study of Pressure Drop in the Separator Channel and Gas Diffusion Layer of Polymer Electrolyte Fuel Cell and Deformation Effect of Porous Media

Litan Kumar Saha, Eru Kurihara, Wanyuan Shi, Nobuyuki Oshima
Proc. ASME. ICNMM2008, ASME 2008 6th International Conference on Nanochannels, Microchannels, and Minichannels, 1317-1325, June 23–25, 2008
Publisher: American Society of Mechanical Engineers
Paper No: ICNMM2008-62211
https://doi.org/10.1115/ICNMM2008-62211
View Paper titled, Numerical Study of Pressure Drop in the Separator Channel and Gas Diffusion Layer of Polymer Electrolyte Fuel Cell and Deformation Effect of Porous Media
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Topics: Deformation, Electrolytes, Fuel cells, Gas diffusion layers, Polymers, Porous materials, Pressure drop, Permeability, Porosity, Computer simulation