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Featured researches published by Hideyuki Oka.


Archive | 2001

Numerical Simulation on the Propagation of an Internal Wave in Multifluid

Hideyuki Oka; Tetuya Kawamura; Katsuya Ishii

We numerically investigate the propagation of surface and internal waves which are caused by a gravity current in a container. A level set approach is used to capture interfaces without explicit tracking. To model the complex boundary of the container, a virtual boundary method is applied to the level set formulation. In this study, it is shown that multifluid flows in a deformed container can be simulated through the combination of the above two methods.


Tunnelling and Underground Space Technology | 2016

Ceiling-jet thickness and vertical distribution along flat-ceilinged horizontal tunnel with natural ventilation

Yasushi Oka; Hideyuki Oka; Osamu Imazeki


Tunnelling and Underground Space Technology | 2016

Velocity and temperature attenuation of a ceiling-jet along a horizontal tunnel with a flat ceiling and natural ventilation

Yasushi Oka; Hideyuki Oka


Journal of Marine Science and Technology | 2008

Evaluation of consequence assessment methods for pool fires on water involving large spills from liquefied natural gas carriers

Hideyuki Oka; Susumu Ota


Theoretical and applied mechanics Japan | 2013

Numerical Simulation of a Turbulent Buoyant Plume Originating at an Oscillating Fire Source

Hideyuki Oka; Yasushi Oka


Journal of The Japan Institute of Marine Engineering | 2017

Numerical Analysis of Hydrogen Dispersion in Wind Tunnel Modeled on Vehicle Space of Pure Car Carriers

Hideyuki Oka; Yuji Ogata; Yasushi Oka; Susumu Ota


Fire Safety Journal | 2017

Numerical analysis on plume temperature properties formed above a harmonically oscillating fire source

Hideyuki Oka; Yasushi Oka


Fire Safety Science | 2014

Experimental study on temperature property along a tunnel axis with flat ceiling in natural ventilation

Yasushi Oka; Hideyuki Oka; Osamu Imazeki


The Journal of Japan Institute of Navigation | 2011

Measurements of Wind in the PCC Hold

Yoh-ichi Kawagoe; Susumu Ota; Hideyuki Oka


Theoretical and applied mechanics Japan | 2004

Large Eddy Simulation of Premixed Turbulent Combustion Using the Flamelet Model Based on the G-equation

Hideyuki Oka

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Yasushi Oka

Yokohama National University

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