Pressure characteristics of cavitation control by aeration

Pressure characteristics of cavitation control by aeration

This experimental investigation was systematically conducted with the aid of a non-circulating water tunnel in the Hydraulics Laboratory at Zhejiang University of Technology in China. The test velocity is between 20 m/s and 40 m/s. The least air concentration to prevent cavitation erosion lies betwe...

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Veröffentlicht in:Journal of hydrodynamics. Series B 2005-12, Vol.17 (6), p.764-769
Hauptverfasser: Dong, Zhi-Yong, Lu, Yang-Quan, Ju, Wen-Jie, Cai, Xin-Ming, Ding, Chun-Sheng
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container_title Journal of hydrodynamics. Series B
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creator Dong, Zhi-Yong
Lu, Yang-Quan
Ju, Wen-Jie
Cai, Xin-Ming
Ding, Chun-Sheng
description This experimental investigation was systematically conducted with the aid of a non-circulating water tunnel in the Hydraulics Laboratory at Zhejiang University of Technology in China. The test velocity is between 20 m/s and 40 m/s. The least air concentration to prevent cavitation erosion lies between 1.7% and 4.5%. Pressure waveforms with and without aeration in cavitation and cavitation erosion regions were measured. Time-averaged pressure profiles with and without aeration were compared. Pressure characteristics corresponding to least air concentration to prevent cavitation erosion in cavitation and cavitation erosion regions were analyzed.
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title Pressure characteristics of cavitation control by aeration
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