TY - JOUR
T1 - Characteristics of fluid exciting force due to blade row interaction of a propeller turbine
AU - Mori, Ryosuke
AU - Ajiro, Kazushi
AU - Miyagawa, Kazuyoshi
N1 - Funding Information:
The authors would like to thank the WISE (Waseda Research Institute for Science and Engineering) for providing support to the presented research, in context of the project: 'High performance and high reliability research for hydraulic turbomachinery systems'. This work was done as part of the project financially supported by the NEDO (New Energy and Industrial Technology Development Organization). We would like to thank the organizers of this work.
Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2021/5/25
Y1 - 2021/5/25
N2 - As the use of renewable energy is promoted, much researches on propeller-type turbines are carried out. To improve reliability, it is important to evaluate the fluid exciting force due to blade row interaction that may cause vibration or fatigue fracture. In this paper, CFD(URANS) simulations and experimental studies were conducted to understand the characteristics of the fluid exciting force due to blade row interaction of a propeller turbine. To evaluate the fluid exciting force, strain gauges and pressure sensors were used in the closed-loop water channel. The fluid exciting force acting on the rotor due to the stator was measured by changing stator load type and the rotor-stator distance. Based on the difference in the attenuation tendency of potential interaction and wake interaction due to changes in the rotor-stator distance, the influences of these interactions could be distinguished. As results of experiments and computation, wake interaction affecting pressure fluctuation was hardly attenuated due to the swirling flow and changing the rotor-stator distance has little effect on the attenuation of blade row interaction.
AB - As the use of renewable energy is promoted, much researches on propeller-type turbines are carried out. To improve reliability, it is important to evaluate the fluid exciting force due to blade row interaction that may cause vibration or fatigue fracture. In this paper, CFD(URANS) simulations and experimental studies were conducted to understand the characteristics of the fluid exciting force due to blade row interaction of a propeller turbine. To evaluate the fluid exciting force, strain gauges and pressure sensors were used in the closed-loop water channel. The fluid exciting force acting on the rotor due to the stator was measured by changing stator load type and the rotor-stator distance. Based on the difference in the attenuation tendency of potential interaction and wake interaction due to changes in the rotor-stator distance, the influences of these interactions could be distinguished. As results of experiments and computation, wake interaction affecting pressure fluctuation was hardly attenuated due to the swirling flow and changing the rotor-stator distance has little effect on the attenuation of blade row interaction.
KW - axial flow turbine
KW - blade row interaction
KW - fluid exciting force
UR - http://www.scopus.com/inward/record.url?scp=85107417130&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85107417130&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/1909/1/012037
DO - 10.1088/1742-6596/1909/1/012037
M3 - Conference article
AN - SCOPUS:85107417130
SN - 1742-6588
VL - 1909
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012037
ER -