Studies of cavitation characteristics of inducers with different blade numbers
Source abstract
Abstract
The cavitation characteristics and load distributions of the inducer have great influences on the vibration characteristics of the rotating system and the whole pump. In this paper, the numerical simulations of the flow field within different inducers were carried out based on the Shear Stress Transfer (SST) k–ω turbulence model combined with the hybrid cavitation model to investigate the effects of blade numbers on the internal flow and cavitation characteristics of the model inducers. The simulation results were compared with the experimental results obtained using a closed inducer performance test rig to verify the accuracy and applicability of the numerical simulation method. The comparisons show that the three-blade inducer has better cavitation performances than the two-blade one. The simulation results of the bubble and load distributions suggest that the cavitation at low flow rates within the two model inducers occurs mainly near the leading edge of the blade tip, but at the design flow rates or higher flow rates, the cavitation within the two-blade inducer occurs along the suction surfaces near the inlet and the cavitation within the three-blade inducer occurs mainly on the inlet suction surfaces near the blade root.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Cavitation Phenomena in Pumps · Hydraulic and Pneumatic Systems · Water Systems and Optimization
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
State-Province Joint Engineering Lab of Fluid Transmission System Technology, Zhejiang Sci-Tech University 1 , 928# No. 2 Avenue, Xiasha, Hangzhou, China
Zhejiang Institute of Mechanical and Electrical Engineering Co., Ltd. 2 , Hangzhou, China
Funding
National Natural Science Foundation of China · Key Research and Development Program of Zhejiang Province · Zhejiang Province High-Level Talent Special Support Plan
References (31)
Show source-provided references
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