Risaburo OBA

Suzuki (Japan) — Japan

Engineering · Physical Sciences

10h-index502citations150works0.02yr avg
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Research Topics

Cavitation Phenomena in Pumps(87), Hydraulic and Pneumatic Systems(34), Ultrasound and Cavitation Phenomena(24), Flow Measurement and Analysis(23), Fluid Dynamics Simulations and Interactions(19)

Publications150 total

Peening on Mechanical Parts of Complex Shape by High-Speed Submerged Water-Jet Accompanied by Uniformly Large Bubble-Cloud (2nd Report, Surface Improvement of Carburizing-Quenching Gear)
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A·2006Open Access
Unsteady Behavior of Cavity Boundary Directly Related to Cavity Discharge
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B·2005· 3 citedOpen Access
Peening on Mechanical Parts of Complex Shape by High-Speed Submerged Water-Jet Accompanied by Uniformly Large Bubble-Cloud (1st Report, The Cloud-Effect-Confirmation for Parts of Complex Shape)
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A·2004Open Access
Singular Behavior of Critical Reynolds Number Re_c within the Working Section of Cavitation Tunnel When the Blockage Factor Is Extremely Large
Medical Entomology and Zoology·2003
Cavitation Noise Characteristics in Submerged Jet Erosion Tests : Effect of Electric Field
The Proceedings of Conference of Chugoku-Shikoku Branch·2003Open Access
GS(P)-39(GSW0249) Surface Improvement of A Quenched Gear Using Water Peening by a Cavitation Jet Technique
The Abstracts of ATEM International Conference on Advanced Technology in Experimental Mechanics Asian Conference on Experimental Mechanics·2003Open Access
Singular Cavitation Behavior at Higher Water Temperature When the Cavitation Shock Pressures Have to Be Maximum
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B·2003Open Access
Flow Determination in the Test Section of Our Highspeed Cavitation Tunnel through an PIV Technique
The proceedings of the JSME annual meeting·2002Open Access
Drag Reduction and Its Application. Numerical Analysis of Transient Hydraulic Losses in Vortical Flow around a Hydrofoil.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B·2001Open Access
K-1427 Cavitation Aspect When the Highest Shock Pressure Takes Place Near 50℃ in Water Temperature
The proceedings of the JSME annual meeting·2001Open Access
Behavior of Water Jet Horizontally Discharged from a Small Circular Hole Set on a Circular Pipe-Surface into Air.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B·2001Open Access
K-1317 Cavitation Nuclei Distribution in our Water Tunnel of Vertical Type to Test Highspeed Submerged Water Jets
The proceedings of the JSME annual meeting·2001Open Access
Flow Analyses around Transient Jet through a PIV Technique
The proceedings of the JSME annual meeting·2000Open Access
115 Behavior of Cavities Formed by Submerged Water Jets
The Proceedings of Conference of Tohoku Branch·2000Open Access
Behavior of Two-Dimensional Aerated Bubbly Flows within a Narrow Duct When a Water Jet Is Vertically Injected into a Cahm Water. 2nd Report. Void Fraction and Bubble Distribution.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B·2000Open Access
Behavior of a Cavitating Submerged Water Jet
The proceedings of the JSME annual meeting·2000Open Access
Characteristics of Cavitation-Induced Vibration around a Hollow-Jet Valve.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B·1999Open Access
Numerical Simulation of Transient Flow around a Typical Hydrofoil.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B·1999Open Access
Behavior of Two-Dimensional Aerated Bubbly Flows within a Narrow Duct When a Water Jet Is Vertically Injected into a Cahm Water. 1st Report. Energy Recovery Rate of the Jet.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B·1999Open Access
Inner-Flow-Visualizations of High-Speed Water-Jets Issued from a TypicalDiesel Nozzle at Several Injection Pressures
Medical Entomology and Zoology·1998
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Frequent Co-authors

Hitoshi SOYAMA(20), Yukio Itô(17), Kazunori Sato(13), Yoshiaki Yamauchi(13), Toshiaki IKOHAGI(11), Yasunori Adachi(8), Shemy Mohamed AHMED(7), Kazuo Hokkirigawa(7), Jiro Higuchi(7), Hideto Miyakura(6), Ryoichiro Oshima(5), Kinya Kikuchi(5), Takenori Shindo(4), Masahiro Yamabe(4), Yasuaki Matsudaira(4), Hiroyuki Ogata(3), Keiichi Sato(3), Kentaro Sakagami(3), Mohamed Shemy Ahmed(2), Satoru Nozaki(2)