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Journal Articles

Multi-Element Stochastic Galerkin Method Based on Edge Detection for Uncertainty Quantification of Discontinuous Responses

Shigetaka Kawai, Akira Oyama

J. Verif. Valid. Uncert. December 2020, 5(4): 041004.

Paper No: VVUQ-20-1005

DOI: https://doi.org/10.1115/1.4049200

Published Online: December 17, 2020

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Topics: Chaos, Edge detection, Polynomials, Uncertainty quantification, Diffusion (Physics), Uncertainty

Proceedings Papers

Experimental Analysis of Closed-Loop Flow Control Around Airfoil Using DBD Plasma Actuator

Satoshi Shimomura, Takuto Ogawa, Satoshi Sekimoto, Taku Nonomura, Akira Oyama, Kozo Fujii, Hiroyuki Nishida

Proc. ASME. FEDSM2017, Volume 1C, Symposia: Gas-Liquid Two-Phase Flows; Gas and Liquid-Solid Two-Phase Flows; Numerical Methods for Multiphase Flow; Turbulent Flows: Issues and Perspectives; Flow Applications in Aerospace; Fluid Power; Bio-Inspired Fluid Mechanics; Flow Manipulation and Active Control; Fundamental Issues and Perspectives in Fluid Mechanics; Transport Phenomena in Energy Conversion From Clean and Sustainable Resources; Transport Phenomena in Materials Processing and Manufacturing Processes, V01CT22A004, July 30–August 3, 2017

Paper No: FEDSM2017-69246

DOI: https://doi.org/10.1115/FEDSM2017-69246

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Topics: Actuators, Airfoils, Experimental analysis, Flow control, Plasmas (Ionized gases), Pressure, Chords (Trusses), Flow (Dynamics), Flow separation, Reynolds number

Proceedings Papers

Validation of Numerical Analysis to Estimate Airfoil Aerodynamic Characteristics at Low Reynolds Number Region

Donghwi Lee, Taku Nonomura, Akira Oyama, Kozo Fujii

Proc. ASME. AJKFluids2015, Volume 1A: Symposia, Part 2, V01AT13A005, July 26–31, 2015

Paper No: AJKFluids2015-13489

DOI: https://doi.org/10.1115/AJKFluids2015-13489

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Topics: Airfoils, Numerical analysis, Reynolds number, Separation (Technology), Reynolds-averaged Navier–Stokes equations, Shapes, Simulation, Geometry, Large eddy simulation, Navier-Stokes equations

Proceedings Papers

Large-Eddy Simulations of Owl-Like Wing Under Low Reynolds Number Conditions

Katsutoshi Kondo, Hikaru Aono, Taku Nonomura, Akira Oyama, Kozo Fujii, Makoto Yamamoto

Proc. ASME. FEDSM2013, Volume 1A, Symposia: Advances in Fluids Engineering Education; Advances in Numerical Modeling for Turbomachinery Flow Optimization; Applications in CFD; Bio-Inspired Fluid Mechanics; CFD Verification and Validation; Development and Applications of Immersed Boundary Methods; DNS, LES, and Hybrid RANS/LES Methods, V01AT04A004, July 7–11, 2013

Paper No: FEDSM2013-16377

DOI: https://doi.org/10.1115/FEDSM2013-16377

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Topics: Large eddy simulation, Reynolds number, Wings, Flow (Dynamics), Separation (Technology), Drag (Fluid dynamics), Bubbles, Pressure, Suction, Airfoils

Proceedings Papers

DBD Plasma Actuator Multi-Objective Design Optimization at Reynolds Number 63,000: Baseline Case

Taufik Sulaiman, Satoshi Sekimoto, Tomoaki Tatsukawa, Taku Nonomura, Akira Oyama, Kozo Fujii

Proc. ASME. FEDSM2013, Volume 1B, Symposia: Fluid Machinery; Fluid Power; Fluid-Structure Interaction and Flow-Induced Noise in Industrial Applications; Flow Applications in Aerospace; Flow Manipulation and Active Control: Theory, Experiments and Implementation; Fundamental Issues and Perspectives in Fluid Mechanics, V01BT15A007, July 7–11, 2013

Paper No: FEDSM2013-16325

DOI: https://doi.org/10.1115/FEDSM2013-16325

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Topics: Actuators, Design, Optimization, Plasmas (Ionized gases), Reynolds number, Algorithms, Airfoils, Electromagnetic scattering, Energy consumption, Flow control

Proceedings Papers

Aerodynamic Design Exploration for Reusable Launch Vehicle Using Multi-Objective Genetic Programming

Tomoaki Tatsukawa, Taku Nonomura, Akira Oyama, Kozo Fujii

Proc. ASME. IDETC-CIE2011, Volume 2: 31st Computers and Information in Engineering Conference, Parts A and B, 213-223, August 28–31, 2011

Paper No: DETC2011-48154

DOI: https://doi.org/10.1115/DETC2011-48154

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Topics: Computer programming, Design, Vehicles, Drag (Fluid dynamics), Shapes, Composite materials, Geometry, Optimization

Proceedings Papers

Computational Study of Flow Characteristics of Thick and Thin Airfoil With Implicit Large-Eddy Simulation at Low Reynolds Number

Ryoji Kojima, Taku Nonomura, Akira Oyama, Kozo Fujii

Proc. ASME. AJK2011, ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D, 3485-3495, July 24–29, 2011

Paper No: AJK2011-15026

DOI: https://doi.org/10.1115/AJK2011-15026

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Topics: Airfoils, Flow (Dynamics), Large eddy simulation, Reynolds number, Bubbles, Separation (Technology), Computation

Proceedings Papers

Experimental Study of Blowing Direction Effects of DBD Plasma Actuator on Separation Control of Flow Around an Airfoil

Taku Nonomura, Satoshi Sekimoto, Kengo Asada, Akira Oyama, Kozo Fujii

Proc. ASME. AJK2011, ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D, 3407-3412, July 24–29, 2011

Paper No: AJK2011-15010

DOI: https://doi.org/10.1115/AJK2011-15010

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Topics: Actuators, Airfoils, Flow (Dynamics), Plasmas (Ionized gases), Separation (Technology), Boundary layers, Momentum, Chords (Trusses), Pressure, Reynolds number

Proceedings Papers

Three-Dimensional Wing Design Towards the Future Mars Airplane

Ryoji Kojima, Donghi Lee, Tomoaki Tatsukawa, Taku Nonomura, Akira Oyama, Kozo Fujii

Proc. ASME. AJK2011, ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D, 3413-3420, July 24–29, 2011

Paper No: AJK2011-15013

DOI: https://doi.org/10.1115/AJK2011-15013

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Topics: Aircraft, Design, Wings, Reynolds number, Drag (Fluid dynamics), Tradeoffs

Proceedings Papers

Computational Study of the Synthetic Jet on Separated Flow Over a Backward-Facing Step

Koichi Okada, Kozo Fujii, Koji Miyaji, Akira Oyama, Taku Nonomura, Kengo Asada

Proc. ASME. IMECE2010, Volume 7: Fluid Flow, Heat Transfer and Thermal Systems, Parts A and B, 161-170, November 12–18, 2010

Paper No: IMECE2010-38767

DOI: https://doi.org/10.1115/IMECE2010-38767

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Topics: Flow (Dynamics), Shear (Mechanics), Vortices, Separation (Technology), Stress, Computation, Large eddy simulation, Navier-Stokes equations, Numerical analysis

Proceedings Papers

Visualization and Verification Method for Failure Network Analysis of Space Launch Vehicles

Keiichiro Fujimoto, Akira Oyama, Kozo Fujii, Nobuyuki Iizuka, Koichi Okita

Proc. ASME. IDETC-CIE2008, Volume 3: 28th Computers and Information in Engineering Conference, Parts A and B, 977-982, August 3–6, 2008

Paper No: DETC2008-49656

DOI: https://doi.org/10.1115/DETC2008-49656

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Topics: Failure, Network analysis, Rocket engines, Vehicles, Visualization

Proceedings Papers

Flow Field Analysis of Under-Expanded Supersonic Jets Impinging on an Inclined Flat Plate: Analysis With PSP/Schlieren Images and CFD Simulations

Kozo Fujii, Akira Oyama, Nobuyuki Tsuboi, Moto Tsukada, Hirofumi Ouchi, Masato Ito, Koichi Hayashi

Proc. ASME. FEDSM2005, Volume 1: Symposia, Parts A and B, 213-221, June 19–23, 2005

Paper No: FEDSM2005-77226

DOI: https://doi.org/10.1115/FEDSM2005-77226

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Topics: Computational fluid dynamics, Flat plates, Flow (Dynamics), Jets, Simulation, Pressure, Flow visualization, Mach number, Nozzles, Paints

Journal citation

NARROW

Multi-Element Stochastic Galerkin Method Based on Edge Detection for Uncertainty Quantification of Discontinuous Responses

Experimental Analysis of Closed-Loop Flow Control Around Airfoil Using DBD Plasma Actuator

Validation of Numerical Analysis to Estimate Airfoil Aerodynamic Characteristics at Low Reynolds Number Region

Large-Eddy Simulations of Owl-Like Wing Under Low Reynolds Number Conditions

DBD Plasma Actuator Multi-Objective Design Optimization at Reynolds Number 63,000: Baseline Case

Aerodynamic Design Exploration for Reusable Launch Vehicle Using Multi-Objective Genetic Programming

Computational Study of Flow Characteristics of Thick and Thin Airfoil With Implicit Large-Eddy Simulation at Low Reynolds Number

Experimental Study of Blowing Direction Effects of DBD Plasma Actuator on Separation Control of Flow Around an Airfoil

Three-Dimensional Wing Design Towards the Future Mars Airplane

Computational Study of the Synthetic Jet on Separated Flow Over a Backward-Facing Step

Visualization and Verification Method for Failure Network Analysis of Space Launch Vehicles

Flow Field Analysis of Under-Expanded Supersonic Jets Impinging on an Inclined Flat Plate: Analysis With PSP/Schlieren Images and CFD Simulations

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