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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, V003T12A030, July 15–20, 2018

Paper No: FEDSM2018-83503

DOI: https://doi.org/10.1115/FEDSM2018-83503

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Topics: Computational fluid dynamics, Discrete element methods, Pumps, Simulation, Vortices, Particulate matter, String, Rods, Computation, Sewage

Proceedings Papers

Numerical Study of One Dimensional Pipe Flow Under Pump Cavitation Surge

Motohiko Nohmi, Satoshi Yamazaki, Shusaku Kagawa, Byungjin An, Donghyuk Kang, Kazuhiko Yokota

Proc. ASME. FEDSM2017, Volume 1A, Symposia: Keynotes; Advances in Numerical Modeling for Turbomachinery Flow Optimization; Fluid Machinery; Industrial and Environmental Applications of Fluid Mechanics; Pumping Machinery, V01AT05A023, July 30–August 3, 2017

Paper No: FEDSM2017-69427

DOI: https://doi.org/10.1115/FEDSM2017-69427

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Topics: Cavitation, Pipe flow, Pumps, Surges, Pipes, Distributed parameter systems, Lumped parameter models, Equations of motion, Flow (Dynamics), Piping systems

Proceedings Papers

An Approximation Method for the Cavitation Eroded Surface

Motohiko Nohmi

Proc. ASME. FEDSM2013, Volume 2, Fora: Cavitation and Multiphase Flow; Fluid Measurements and Instrumentation; Microfluidics; Multiphase Flows: Work in Progress, V002T06A009, July 7–11, 2013

Paper No: FEDSM2013-16506

DOI: https://doi.org/10.1115/FEDSM2013-16506

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Topics: Approximation, Cavitation, Cavitation erosion, Flow (Dynamics), Geometry, Boundary-value problems, Computational fluid dynamics, Computers, Solid models

Journal Articles

Study of Quantitative Numerical Prediction of Cavitation Erosion in Cavitating Flow

Naoya Ochiai, Yuka Iga, Motohiko Nohmi, Toshiaki Ikohagi

J. Fluids Eng. January 2013, 135(1): 011302.

Paper No: FE-12-1139

DOI: https://doi.org/10.1115/1.4023072

Published Online: December 21, 2012

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Topics: Bubbles, Cavitation erosion, Collapse, Erosion, Flow (Dynamics), Pressure, Numerical analysis, Surfaces (Materials)

Proceedings Papers

On Boundary Conditions for Cavitation CFD and System Dynamics of Closed Loop Channel

Motohiko Nohmi, Toshiaki Ikohagi, Yuka Iga

Proc. ASME. AJK2011, ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 2, Fora, 183-190, July 24–29, 2011

Paper No: AJK2011-33007

DOI: https://doi.org/10.1115/AJK2011-33007

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Topics: Boundary-value problems, Cavitation, Computational fluid dynamics, System dynamics, Flow (Dynamics), Pressure, Closed loop systems, Computer software, Dynamics (Mechanics), Lumped parameter models

Proceedings Papers

A Detailed Observation of Hydrofoil Cavitation and a Proposal for Improving Cavitation Model

Motohiko Nohmi, Naoya Ochiai, Yuka Iga, Toshiaki Ikohagi

Proc. ASME. FEDSM2010, ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 2, Fora, 19-27, August 1–5, 2010

Paper No: FEDSM-ICNMM2010-30435

DOI: https://doi.org/10.1115/FEDSM-ICNMM2010-30435

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Topics: Cavitation, Hydrofoil, Bubbles, Cavities, Blades, Boiling, Collapse, Computational fluid dynamics, Dynamics (Mechanics), Erosion

Proceedings Papers

Numerical Prediction Method of Cavitation Erosion

Motohiko Nohmi, Toshiaki Ikohagi, Yuka Iga

Proc. ASME. FEDSM2008, Volume 1: Symposia, Parts A and B, 1139-1145, August 10–14, 2008

Paper No: FEDSM2008-55126

DOI: https://doi.org/10.1115/FEDSM2008-55126

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Topics: Bubbles, Cavitation, Cavitation erosion, Cavities, Collapse, Computation, Computational fluid dynamics, Dynamics (Mechanics), Erosion, Flow (Dynamics)

Proceedings Papers

Experimental and Numerical Study of Cavitation Breakdown in a Centrifugal Pump

Motohiko Nohmi, Akira Goto, Yuka Iga, Toshiaki Ikohagi

Proc. ASME. FEDSM2003, Volume 1: Fora, Parts A, B, C, and D, 1251-1258, July 6–10, 2003

Paper No: FEDSM2003-45409

DOI: https://doi.org/10.1115/FEDSM2003-45409

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Topics: Cavitation, Centrifugal pumps, Flow (Dynamics), Pressure, Bubbles, Computational fluid dynamics, Blades, Cavities, Impellers, Suction

Journal Articles

Numerical Study of Sheet Cavitation Breakoff Phenomenon on a Cascade Hydrofoil

Yuka Iga, Assistant Researcher, Motohiko Nohmi, Senior Researcher, Akira Goto, Director, Byeong Rog Shin, Associate Professor, Toshiaki Ikohagi, Professor

J. Fluids Eng. July 2003, 125(4): 643–651.

DOI: https://doi.org/10.1115/1.1596239

Published Online: August 27, 2003

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Topics: Cascades (Fluid dynamics), Cavitation, Cavities, Hydrofoil, Pressure, Cavity flows, Numerical analysis, Flow (Dynamics), Surface waves (Fluid)

Journal Articles

Hydrodynamic Design System for Pumps Based on 3-D CAD, CFD, and Inverse Design Method

Akira Goto, Motohiko Nohmi, Takaki Sakurai, Yoshiyasu Sogawa

J. Fluids Eng. June 2002, 124(2): 329–335.

DOI: https://doi.org/10.1115/1.1471362

Published Online: May 28, 2002

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Topics: Blades, Computational fluid dynamics, Design, Flow (Dynamics), Pumps, Design methodology, Diffusers, Impellers

Journal citation

NARROW

Machine-Learning-Based Reconstruction of Turbulent Vortices From Sparse Pressure Sensors in a Pump Sump

Active Flow Control of a Pump-Induced Wall-Normal Vortex With Steady Blowing

Global Stability Analysis on the Spiral-Vortex Mode in the Confined Cavity Flow Between Rotating and Stationary Disks

Numerical Analysis of Contraction Geometry Effects on Cavitation Choking in a Piping System

Numerical Investigation on the Effect of Blade Loading on Unsteady Sheet Cavitation Patterns

Cavitation CFD Prediction for NACA0015 Hydrofoil Flow Considering Boundary Layer Characteristics

Comparative Assessment of a Barotropic Model and a Void Fraction Transport Model for Numerically Predicting Steady Sheet Cavitation

Clogging Mechanisms of Vortex Pumps: Fibrous Material Motion Capture and Simulation With a CFD and DEM Coupling Method

Numerical Study of One Dimensional Pipe Flow Under Pump Cavitation Surge

An Approximation Method for the Cavitation Eroded Surface

Study of Quantitative Numerical Prediction of Cavitation Erosion in Cavitating Flow

On Boundary Conditions for Cavitation CFD and System Dynamics of Closed Loop Channel

A Detailed Observation of Hydrofoil Cavitation and a Proposal for Improving Cavitation Model

Numerical Prediction Method of Cavitation Erosion

Experimental and Numerical Study of Cavitation Breakdown in a Centrifugal Pump

Numerical Study of Sheet Cavitation Breakoff Phenomenon on a Cascade Hydrofoil

Hydrodynamic Design System for Pumps Based on 3-D CAD, CFD, and Inverse Design Method

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