Logo: Institute of Slush Hydrogen.
When pipe flow velocity of slush hydrogen or slush nitrogen increases and heterogeneous flow changes to pseudo-homogeneous flow, a group of particles being moved to the central region of the pipe suppresses the development of turbulence at the pipe wall, thus resulting in pressure drop reduction and heat transfer deterioration.
Logo shows an image of the solid fraction profile in slush flow for circular pipe.
Dr. Katsuhide OHIRA (Dr. Slush)
- 1975-2004 Nagasaki technical institute, Mitsubishi Heavy Industries Ltd.
Dr. Ohira engaged in the development of liquid and slush hydrogen technologies, H-Ⅰ, H-Ⅱ, H-ⅡA rockets, and cryogenic liquefier/refrigerator.
Ph.D. thesis “Study of hydrogen liquefaction and slush hydrogen production”.
- 2004-2016 Professor, Institute of Fluid Socience (Cryogenic flow laboratory),
Prof. Ohira engaged in the development of liquid and slush hydrogen technologies, the high-efficiency hydrogen energy system using slush hydrogen, and thermo-fluid technologies of cryogenic fluid.
- Apr. 2016 Emeritus Professor, Tohoku University.
Apr. 2016-Mar. 2018 Guest Professor, Japan Aerospace Exploration Agency (JAXA).
May 2016 Representative, Institute of Slush Hydrogen.
May 2016 Fellow, Cryogenics and Superconductivity of Japan.
The Academic Award of Japan Aeronautic Association in 1973.
The Best Technology Award of The Japanese Society for Multiphase Flow in 2008.
The Best Research Paper Award of Cryogenics and Superconductivity Society of Japan (CSSJ) in 2011.
The Best Research Achievement Award of CSSJ in 2015, etc.
- Academic activities.
Dr. Ohira has published 51 refereed papers, and 55 technical papers, and given 22 invited lectures, and over 100 presentations at international and domestic conferences in the areas of cryogenics, fluid dynamics, and heat transfer engineering. He has also obtained 51 patents.