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Proceedings Papers

Laser Velocity and Surface Measurements Toward the Prediction of Turbulent Frictional Resistance on Irregular Rough Surface in Higher Reynolds Number Range

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Kyohei Okubo, Shunpei Suzuki, Yusuke Kuwata, Yasuo Kawaguchi
Proc. ASME. AJKFluids2019, Volume 1: Fluid Mechanics, V001T01A075, July 28–August 1, 2019
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2019-5325
https://doi.org/10.1115/AJKFluids2019-5325
View Paper titled, Laser Velocity and Surface Measurements Toward the Prediction of Turbulent Frictional Resistance on Irregular Rough Surface in Higher Reynolds Number Range
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Topics: Flow (Dynamics), Friction, Lasers, Particulate matter, Reynolds number, Skin friction (Fluid dynamics), Surface roughness, Turbulence
Proceedings Papers

Experimental Analysis of Turbulent Wake Development Behind a Permeable Cylinder

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Yasufumi Horimoto, Yusuke Suzuki, Kazuki Hagiwara, Yasuo Kawaguchi
Proc. ASME. AJKFluids2019, Volume 1: Fluid Mechanics, V001T01A067, July 28–August 1, 2019
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2019-4790
https://doi.org/10.1115/AJKFluids2019-4790
View Paper titled, Experimental Analysis of Turbulent Wake Development Behind a Permeable Cylinder
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Topics: Cylinders, Experimental analysis, Particulate matter, Vortex shedding, Wake turbulence
Proceedings Papers

Effect of Active Flow Control Mechanisms on the Turbulent Flow Structures

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Satoshi Tsubokura, Yasuo Kawaguchi
Proc. ASME. AJKFluids2019, Volume 1: Fluid Mechanics, V001T01A068, July 28–August 1, 2019
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2019-4798
https://doi.org/10.1115/AJKFluids2019-4798
View Paper titled, Effect of Active Flow Control Mechanisms on the Turbulent Flow Structures
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Topics: Flow control, Suction, Turbulence
Proceedings Papers

Large Eddy Structure Appearing in Meandering Motion of High Reynolds Number Viscoelastic Flow Past a Backward-Facing Step

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Shohei Onishi, Ryusuke Ii, Shumpei Hara, Takahiro Tsukahara, Yasuo Kawaguchi
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, V01CT18A005, July 30–August 3, 2017
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2017-69558
https://doi.org/10.1115/FEDSM2017-69558
View Paper titled, Large Eddy Structure Appearing in Meandering Motion of High Reynolds Number Viscoelastic Flow Past a Backward-Facing Step
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Topics: Eddies (Fluid dynamics), Flow (Dynamics), Reynolds number, Shear stress, Surfactants, Pressure, Turbulence, Flow separation, Fluids, Friction
Proceedings Papers

Modification of Near-Wall Turbulent Structure in Channel Flow by Dosing a Small Amount of Polymer Solution

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Yushi Okamura, Tomohiro Kurose, Yasuo Kawaguchi
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, V01CT18A003, July 30–August 3, 2017
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2017-69521
https://doi.org/10.1115/FEDSM2017-69521
View Paper titled, Modification of Near-Wall Turbulent Structure in Channel Flow by Dosing a Small Amount of Polymer Solution
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Topics: Channel flow, Polymer solutions, Turbulence, Polymers, Flow (Dynamics), Stress, Fluctuations (Physics), Fluids, Shear (Mechanics), Viscoelastic fluids
Proceedings Papers

Instantaneous Turbulent Structure Relating to Momentum and Scalar Transport in a Reducing Channel Flow With Surfactant Additives

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Takuya Matsumoto, Shumpei Hara, Takahiro Tsukahara, Yasuo Kawaguchi
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, V01CT18A004, July 30–August 3, 2017
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2017-69533
https://doi.org/10.1115/FEDSM2017-69533
View Paper titled, Instantaneous Turbulent Structure Relating to Momentum and Scalar Transport in a Reducing Channel Flow With Surfactant Additives
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Topics: Channel flow, Momentum, Scalars, Surfactants, Turbulence, Flow (Dynamics), Vortices, Fluorescence, Lasers, Mass transfer
Proceedings Papers

Spectral Analysis and Discussion on the Velocity Fluctuation in Drag Reducing Channel Flow by Surfactant Additives

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Yuichi Kaiho, Shumpei Hara, Takahiro Tsukahara, Yasuo Kawaguchi
Proc. ASME. FEDSM2016, Volume 1B, Symposia: Fluid Mechanics (Fundamental Issues and Perspectives; Industrial and Environmental Applications); Multiphase Flow and Systems (Multiscale Methods; Noninvasive Measurements; Numerical Methods; Heat Transfer; Performance); Transport Phenomena (Clean Energy; Mixing; Manufacturing and Materials Processing); Turbulent Flows — Issues and Perspectives; Algorithms and Applications for High Performance CFD Computation; Fluid Power; Fluid Dynamics of Wind Energy; Marine Hydrodynamics, V01BT25A005, July 10–14, 2016
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2016-7725
https://doi.org/10.1115/FEDSM2016-7725
View Paper titled, Spectral Analysis and Discussion on the Velocity Fluctuation in Drag Reducing Channel Flow by Surfactant Additives
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Topics: Channel flow, Drag (Fluid dynamics), Emission spectroscopy, Spectroscopy, Surfactants, Turbulence, Flow (Dynamics), Fluctuations (Physics), Viscoelasticity, Anisotropy
Proceedings Papers

Proposal and Verification of Estimation Method for Turbulent Frictional Drag of Irregularly Roughened Surface From the Roughness Curve Measurement

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Manami Gunji, Taiga Shoen, Hirohisa Mieno, Yasuo Kawaguchi
Proc. ASME. FEDSM2016, Volume 1B, Symposia: Fluid Mechanics (Fundamental Issues and Perspectives; Industrial and Environmental Applications); Multiphase Flow and Systems (Multiscale Methods; Noninvasive Measurements; Numerical Methods; Heat Transfer; Performance); Transport Phenomena (Clean Energy; Mixing; Manufacturing and Materials Processing); Turbulent Flows — Issues and Perspectives; Algorithms and Applications for High Performance CFD Computation; Fluid Power; Fluid Dynamics of Wind Energy; Marine Hydrodynamics, V01BT25A006, July 10–14, 2016
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2016-7728
https://doi.org/10.1115/FEDSM2016-7728
View Paper titled, Proposal and Verification of Estimation Method for Turbulent Frictional Drag of Irregularly Roughened Surface From the Roughness Curve Measurement
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Topics: Drag (Fluid dynamics), Surface roughness, Turbulence, Cylinders, Friction, Painting, Density, Flow (Dynamics), Form drag, Measuring instruments
Proceedings Papers

Enhancement of Turbulent Shear Stress and Mass Transfer in Wall Turbulence Accompanied With Wall Blowing

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Yushi Okamura, Hideaki Sugioka, Yasuo Kawaguchi
Proc. ASME. FEDSM2016, Volume 1B, Symposia: Fluid Mechanics (Fundamental Issues and Perspectives; Industrial and Environmental Applications); Multiphase Flow and Systems (Multiscale Methods; Noninvasive Measurements; Numerical Methods; Heat Transfer; Performance); Transport Phenomena (Clean Energy; Mixing; Manufacturing and Materials Processing); Turbulent Flows — Issues and Perspectives; Algorithms and Applications for High Performance CFD Computation; Fluid Power; Fluid Dynamics of Wind Energy; Marine Hydrodynamics, V01BT25A007, July 10–14, 2016
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2016-7746
https://doi.org/10.1115/FEDSM2016-7746
View Paper titled, Enhancement of Turbulent Shear Stress and Mass Transfer in Wall Turbulence Accompanied With Wall Blowing
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Topics: Mass transfer, Shear stress, Turbulence, Eddies (Fluid dynamics), Anisotropy, Channel flow, Momentum, Swirling flow, Vortices
Proceedings Papers

Characteristics of High Concentration Pulses in Turbulent Mass Diffusion

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Mayasa Endo, Qianqian Shao, Takahiro Tsukahara, Yasuo Kawaguchi
Proc. ASME. FEDSM2016, Volume 1B, Symposia: Fluid Mechanics (Fundamental Issues and Perspectives; Industrial and Environmental Applications); Multiphase Flow and Systems (Multiscale Methods; Noninvasive Measurements; Numerical Methods; Heat Transfer; Performance); Transport Phenomena (Clean Energy; Mixing; Manufacturing and Materials Processing); Turbulent Flows — Issues and Perspectives; Algorithms and Applications for High Performance CFD Computation; Fluid Power; Fluid Dynamics of Wind Energy; Marine Hydrodynamics, V01BT24A005, July 10–14, 2016
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2016-7786
https://doi.org/10.1115/FEDSM2016-7786
View Paper titled, Characteristics of High Concentration Pulses in Turbulent Mass Diffusion
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Topics: Diffusion (Physics), Turbulence, Plumes (Fluid dynamics), Wavelets, Damage, Diffusion processes, Flow (Dynamics), Fluorescence, Lasers, Particulate matter
Proceedings Papers

Multidimensional Measurements of Turbulent Boundary Layer Including Scattered Particles Using PIV Technique

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Yoshiki Sugawara, Takahiro Tsukahara, Yasuo Kawaguchi
Proc. ASME. AJKFluids2015, Volume 1A: Symposia, Part 2, V01AT32A004, July 26–31, 2015
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2015-32390
https://doi.org/10.1115/AJKFluids2015-32390
View Paper titled, Multidimensional Measurements of Turbulent Boundary Layer Including Scattered Particles Using PIV Technique
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Topics: Boundary layer turbulence, Particulate matter, Stress, Flow (Dynamics), Gas flow, Glass beads, Image processing, Microscale devices
Proceedings Papers

Relationship Between Diffusing-Material Lumps and Organized Structures in Turbulent Flow

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Masaya Endo, Takahiro Tsukahara, Yasuo Kawaguchi
Proc. ASME. AJKFluids2015, Volume 1A: Symposia, Part 2, V01AT24A002, July 26–31, 2015
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2015-24432
https://doi.org/10.1115/AJKFluids2015-24432
View Paper titled, Relationship Between Diffusing-Material Lumps and Organized Structures in Turbulent Flow
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Topics: Turbulence, Diffusion (Physics), Channel flow, Damage, Gaussian distribution, Nozzles, Particulate matter, Pollution, Scalars, Statistical distributions
Proceedings Papers

Influence of Viscoelasticity on Turbulent Flow Over a Backward-Facing Step

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Akito Ikegami, Takahiro Tsukahara, Yasuo Kawaguchi
Proc. ASME. AJKFluids2015, Volume 1A: Symposia, Part 2, V01AT25A002, July 26–31, 2015
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2015-25251
https://doi.org/10.1115/AJKFluids2015-25251
View Paper titled, Influence of Viscoelasticity on Turbulent Flow Over a Backward-Facing Step
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Topics: Turbulence, Viscoelasticity, Flow (Dynamics), Fluids, Vortices, Computer simulation, Friction, Reynolds number, Viscoelastic fluids
Proceedings Papers

PIV-PLIF Experiment on Modification of Turbulent Scalar Diffusion Near the Wall by Uniform Blowing

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Hideaki Sugioka, Zaiguo Fu, Takahiro Tsukahara, Yasuo Kawaguchi
Proc. ASME. AJKFluids2015, Volume 1A: Symposia, Part 2, V01AT25A004, July 26–31, 2015
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2015-25431
https://doi.org/10.1115/AJKFluids2015-25431
View Paper titled, PIV-PLIF Experiment on Modification of Turbulent Scalar Diffusion Near the Wall by Uniform Blowing
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Topics: Diffusion (Physics), Scalars, Turbulence, Mass transfer, Vortices, Flow (Dynamics), Fluids, Heat transfer, Isotropy, Momentum
Proceedings Papers

PIV Experiment on the Gas-Solid Multiphase Flow Relevant to Wind-Blown Sand: Comparison of Velocity Fields of Sand Particles and Air Flow by Simultaneous Measurement

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Kenji Otakeguchi, Daisuke Aoshima, Yusuke Sakamoto, Takahiro Tsukahara, Yasuo Kawaguchi, Makoto Yamamoto
Proc. ASME. AJK2011, ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D, 3211-3219, July 24–29, 2011
Publisher: American Society of Mechanical Engineers
Paper No: AJK2011-12017
https://doi.org/10.1115/AJK2011-12017
View Paper titled, PIV Experiment on the Gas-Solid Multiphase Flow Relevant to Wind-Blown Sand: Comparison of Velocity Fields of Sand Particles and Air Flow by Simultaneous Measurement
Open the PDF for PIV Experiment on the Gas-Solid Multiphase Flow Relevant to Wind-Blown Sand: Comparison of Velocity Fields of Sand Particles and Air Flow by Simultaneous Measurement in another window
Topics: Air flow, Multiphase flow, Particulate matter, Sands, Wind, Momentum, Boundary layer turbulence, Dust, Flow (Dynamics), Storms
Proceedings Papers

Experimental Investigation on Effects of Surface Roughness Geometry Affecting to Flow Resistance

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Takahiro Ito, Ayumu Matsumoto, Toshihisa Ito, Masaaki Motozawa, Kaoru Iwamoto, Hideki Kawashima, Hirotomo Ando, Tetsuya Senda, Yasuo Kawaguchi
Proc. ASME. AJK2011, ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D, 3945-3954, July 24–29, 2011
Publisher: American Society of Mechanical Engineers
Paper No: AJK2011-25014
https://doi.org/10.1115/AJK2011-25014
View Paper titled, Experimental Investigation on Effects of Surface Roughness Geometry Affecting to Flow Resistance
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Topics: Flow (Dynamics), Geometry, Surface roughness, Cylinders, Friction, Sands, Shapes, Gaussian distribution, Torque, Torque measurement
Proceedings Papers

Relationship Between Vortex Structure and Reynolds Shear Stress of Turbulent Drag Reducing Flow With Blowing Polymer Solution From the Wall

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Shota Ishitsuka, Hening Xu, Masaaki Motozawa, Kaoru Iwamoto, Hirotomo Ando, Tetsuya Senda, Yasuo Kawaguchi
Proc. ASME. AJK2011, ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D, 3955-3962, July 24–29, 2011
Publisher: American Society of Mechanical Engineers
Paper No: AJK2011-25015
https://doi.org/10.1115/AJK2011-25015
View Paper titled, Relationship Between Vortex Structure and Reynolds Shear Stress of Turbulent Drag Reducing Flow With Blowing Polymer Solution From the Wall
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Topics: Drag (Fluid dynamics), Flow (Dynamics), Polymer solutions, Shear stress, Turbulence, Vortices, Channel flow, Drag reduction, Fluids, Reynolds number
Proceedings Papers

Parametric Study of Viscoelastic Turbulence Within an Obstructed Channel Flow

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Tomohiro Kawase, Takahiro Tsukahara, Yasuo Kawaguchi
Proc. ASME. AJK2011, ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D, 3969-3975, July 24–29, 2011
Publisher: American Society of Mechanical Engineers
Paper No: AJK2011-25019
https://doi.org/10.1115/AJK2011-25019
View Paper titled, Parametric Study of Viscoelastic Turbulence Within an Obstructed Channel Flow
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Topics: Channel flow, Turbulence, Flow (Dynamics), Drag (Fluid dynamics), Drag reduction, Vortices, Computer simulation, Geometry, Reynolds number, Separation (Technology)
Proceedings Papers

DNS of Turbulent Spot Developing Into Turbulent Stripe in Plane Poiseuille Flow

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Hiroshi Aida, Takahiro Tsukahara, Yasuo Kawaguchi
Proc. ASME. FEDSM2010, ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 1, Symposia – Parts A, B, and C, 2125-2130, August 1–5, 2010
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM-ICNMM2010-30956
https://doi.org/10.1115/FEDSM-ICNMM2010-30956
View Paper titled, DNS of Turbulent Spot Developing Into Turbulent Stripe in Plane Poiseuille Flow
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Topics: Poiseuille flow, Turbulence, Shapes, Channel flow, Computer simulation, Waves
Proceedings Papers

DNS Study of Transitional Channel Flow Accompanied by Turbulent-Stripe Structures

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Shizuma Kaneko, Takahiro Tsukahara, Yasuo Kawaguchi
Proc. ASME. FEDSM2010, ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 1, Symposia – Parts A, B, and C, 2141-2148, August 1–5, 2010
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM-ICNMM2010-31122
https://doi.org/10.1115/FEDSM-ICNMM2010-31122
View Paper titled, DNS Study of Transitional Channel Flow Accompanied by Turbulent-Stripe Structures
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Topics: Channel flow, Turbulence, Computer simulation, Energy transformation, Fluids, Poiseuille flow, Reynolds number, Stress, Transport processes