Kyushu University Academic Staff Educational and Research Activities Database
Researcher information (To researchers) Need Help? How to update
Satoshi Watanabe Last modified date:2017.11.06

Professor / Fluids Engineering Research Group
Department of Mechanical Engineering
Faculty of Engineering


Graduate School
Undergraduate School


E-Mail
Phone
092-802-3108
Fax
092-802-0001
Academic Degree
Ph. D
Field of Specialization
Fluid Engineering
Outline Activities
[Research activities]
Unsteady cavitating flow in turbomachinery
Internal flow structure of turbomachinery
Other subjects related to fluid mechanics and fluid machinery

[Education]
Exercise on fluid mechanics and fluid machinery

[Social activities]
Member of turbopump research group, Turbomachinery Society of Japan
Research
Research Interests
  • Research on the flow mechanism of cavitation instabilities in inducers toward their advance detection, control and suppression
    keyword : Inducer, Cavitation instabilities, Advance detection
    1998.04The attachment of pump inducer upstream of main impeller is a powerful method to improve the cavitation performance. However under the severe condition of suction pressere at partial flow rate, cavitation induced oscillation occurrs and stable pump operation becomes difficult. This oscillation is investigated in order to elucidate the mechanism of oscillation occurring and to develop the advance detection system and suppression devices..
  • Experimental/Numerical studies on basic charactersitics of unsteady cavitating flow around hydrofoils and cascades
    keyword : Cavitation, Unsteady Flow
    1998.04Experimental/Numerical studies on basic charactersitics of unsteady cavitating flow around hydrofoils and cascades.
  • Theoretical/numerical modeling of thermodynamic effect of cavitation (real fluid effects of thermosensible fluid) and its application to the unsteady cavitation analysis
    keyword : Cavitation, Thermodynamic effect
    2005.04Theoretical/numerical modeling of thermodynamic effect of cavitation (real fluid effects of thermosensible fluid) and its application to the unsteady cavitation analysis .
  • Reseach and development of simplified ducted Darriues hydroturbine for utilization of extra low head sites.
    keyword : Darriues hydroturbine, Extra low head hydropower, Low cost
    1998.04Reseach and development of simplified ducted Darriues hydroturbine for utilization of extra low head sites..
  • Research and develomement of gas-liquid two phase flow centrifugal pump and its application to large capacity micro-bubble generator
    keyword : Centrifugal pump, Gas liquid two-phase flow, Microbubble
    1998.04Research and develomement of gas-liquid two phase flow centrifugal pump and its application to large capacity micro-bubble generator.
  • Research on high performance design of contra-rotating axial flow pump
    keyword : Turbomachinery, Axial flow pump, Contra-rotating rotors, High performance
    1999.04There is a demand for a small-sized and high-speed axial flow pump with high efficiency for energy and CO2 prolems. An axial flow pump with contra-rotating rotors, instead of with rotor-stator, has been proposed to achieve the demand. In order to develop the design guiding principle, The experimental and computational works are carried on..
Academic Activities
Papers
1. Satoshi WATANABE, Tatsuya HIDAKA, Hironori HORIGUCHI, Akinori FURUKAWA, Yoshinobu TSUJIMOTO, Analysis of Thermodynamic Effects on Cavitation Instabilities, Transactions of ASME, Journal of Fluids Engineering, Vol.129, pp.1123〜1130, 2007.09.
2. Akira FUJII, Seiji AZUMA, Yoshiki YOSHIDA, Yoshinobu TSUJIMOTO, Hironori HORIGUCHI and Satoshi WATANABE, Higher Order Rotating Cavitation in an Inducer, International Journal of Rotating Machinery, Vol. 10, No. 4, pp. 241-251, 2004.07.
3. Satoshi WATANABE and Christopher BRENNEN, Dynamics of Cavitating Propeller in a Water Tunnel, Transactions of ASME, Journal of Fluids Engineering, Vol. 125, No. 2, pp.283-292, 2003.03.
4. Akinori FURUKAWA, Koichi ISHIZAKA and Satoshi WATANABE, Flow Measurement in Helical Inducer and Estimate of Fluctuating Blade Force in Cavitation Surge Phenomena, JSME International Journal, 45, 3, Vol.43,No.3,pp.672〜677, 2002.08.
5. Satoshi WATANABE,Yoshinobu TSUJIMOTO, Akinori FURUKAWA, Theoretical Analysis of Transitional and Partial Cavity Instabilities, Transactions of ASME, Journal of Fluids Engineering, 123, 3, Vol.123, No.3, pp.692-697, 2001.09.
Presentations
1. Rotating Stall Behavior in Radial Vaneless Diffuser of Centrifugal Pump and Its Suppression.
2. Blade Rows Interaction of Contra-Rotating Axial Flow Pump Rotors in Pressure Field on Casing Wall.
3. Influences of Impeller Diameter and Diffuser Blades on Air-Water Two-Phase Flow Performance of Centrifugal Pump.
4. Steady Analysis of Thermodynamic Effect of Partial Cavitation Using Singularity Method.
5. Utilization of Two-Dimensional Ducted Durrieus Turbine for Extra-Low Head Hydropower.
6. Suppression of Cavitation Surge of Inducer by Inserting Axi-asymmetric Obstacle Plate.
Membership in Academic Society
  • The Japanese Society for Multiphase Flow
  • American Society of Mechanical Engineers
  • Turbomachinery Society of Japan
  • Japan Society of Mechanical Engineers
Awards
  • Japan Society of Mechanical Engineers Paper Award
Social
Professional and Outreach Activities
JAXA Visiting Researcher (2005.4-).