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Nobuhito Oka
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Proceedings Papers

Simultaneous Optimization of Impeller Blade Loading Distribution and Meridional Geometry for Aerodynamic Design of Centrifugal Compressor

Kaito Manabe, Sasuga Ito, Masato Furukawa, Kazutoyo Yamada, Nobuhito Oka, Isao Tomita, Yoshihiro Hayashi
Proc. ASME. AJKFluids2019, Volume 3A: Fluid Applications and Systems, V03AT03A026, July 28–August 1, 2019
Paper No: AJKFluids2019-5358
DOI: https://doi.org/10.1115/AJKFluids2019-5358
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Topics: Blades, Compressors, Design, Genetic algorithms, Geometry, Impellers, Optimization
Proceedings Papers

The Role of Meridional Geometry in Aerodynamic Design of Centrifugal Compressor

Sasuga Ito, Kazutoyo Yamada, Masato Furukawa, Kaito Manabe, Nobuhito Oka, Isao Tomita, Yoshihiro Hayashi
Proc. ASME. FEDSM2018, Volume 3: Fluid Machinery; Erosion, Slurry, Sedimentation; Experimental, Multiscale, and Numerical Methods for Multiphase Flows; Gas-Liquid, Gas-Solid, and Liquid-Solid Flows; Performance of Multiphase Flow Systems; Micro/Nano-Fluidics, V003T12A022, July 15–20, 2018
Paper No: FEDSM2018-83398
DOI: https://doi.org/10.1115/FEDSM2018-83398
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Topics: Compressors, Design, Geometry, Viscous flow, Turbochargers, Boundary layers, Design methodology, Engines, Reynolds-averaged Navier–Stokes equations, Vehicles
Proceedings Papers

Optimum Aerodynamic Design of Centrifugal Compressor Impeller Using an Inverse Method Based on Meridional Viscous Flow Analysis

Nobuhito Oka, Masato Furukawa, Kazutoyo Yamada, Sasuga Itou, Seiichi Ibaraki, Kenichiro Iwakiri, Yoshihiro Hayashi
Proc. ASME. GT2017, Volume 2C: Turbomachinery, V02CT44A013, June 26–30, 2017
Paper No: GT2017-63539
DOI: https://doi.org/10.1115/GT2017-63539
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Topics: Compressor impellers, Design, Viscous flow, Blades, Design methodology, Flow (Dynamics), Optimization, Experimental analysis, Flow separation, Genetic algorithms
Proceedings Papers

Aerodynamic Performances and Flow Fields of Pareto Optimal Solutions in an Aerodynamic Design of a Wind-Lens Turbine

Nobuhito Oka, Masato Furukawa, Kazutoyo Yamada, Akihiro Oka, Yasushi Kurokawa
Proc. ASME. GT2015, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T46A022, June 15–19, 2015
Paper No: GT2015-43619
DOI: https://doi.org/10.1115/GT2015-43619
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Topics: Design, Flow (Dynamics), Lenses (Optics), Turbines, Wind, Design methodology, Diffusers, Optimization, Wind tunnels, Wind turbines
Proceedings Papers

Suppression of Secondary Flows in an Axial Flow Turbine Rotor With a Novel Blade Design Concept

Kazutoyo Yamada, Masato Furukawa, Takanori Shibata, Satoshi Nakakido, Nobuhito Oka
Proc. ASME. GT2014, Volume 2C: Turbomachinery, V02CT38A019, June 16–20, 2014
Paper No: GT2014-25630
DOI: https://doi.org/10.1115/GT2014-25630
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Topics: Axial flow, Blades, Design, Flow (Dynamics), Rotors, Turbines, Chords (Trusses), Pressure, Computational methods, Design methodology
Proceedings Papers

Simultaneous Optimization of Rotor Blade and Wind-Lens for Aerodynamic Design of Wind-Lens Turbine

Nobuhito Oka, Masato Furukawa, Kazutoyo Yamada, Kenta Kawamitsu, Kota Kido, Akihiro Oka
Proc. ASME. GT2014, Volume 3B: Oil and Gas Applications; Organic Rankine Cycle Power Systems; Supercritical CO2 Power Cycles; Wind Energy, V03BT46A016, June 16–20, 2014
Paper No: GT2014-25770
DOI: https://doi.org/10.1115/GT2014-25770
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Topics: Blades, Design, Lenses (Optics), Optimization, Rotors, Turbines, Wind, Flow (Dynamics), Design methodology, Viscous flow
Proceedings Papers

Aerodynamic Design for Wind-Lens Turbine Using Optimization Technique

Nobuhito Oka, Masato Furukawa, Kazutoyo Yamada, Kota Kido
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, V01AT02A009, July 7–11, 2013
Paper No: FEDSM2013-16569
DOI: https://doi.org/10.1115/FEDSM2013-16569
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Topics: Design, Lenses (Optics), Optimization, Turbines, Wind, Rotors, Blades, Design methodology, Flow (Dynamics), Viscous flow