Impact load measurements with a PVDF pressure sensor in an erosive cavitating flow

9th International Symposium on Cavitation

Hujer, J.^1 ; Carrat, Jb^2 ; Müller, M.^1 ; Riondet, M.^2

Technical University of Liberec, Studentska 2, Liberec

461 17, Czech Republic^1

LEGI, Univ. Grenoble Alpes, CNRS, Grenoble

F-38000, France^2

关键词: Cavitating flow;    Cavitation bubble;    Cavitation number;    Cumulative histogram;    Flush-mounted;    Pressure peaks;    PVDF pressure sensor;    Test sections;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/656/1/012051/pdf
DOI  :  10.1088/1742-6596/656/1/012051

来源: IOP

【 摘 要 】

A PVDF pressure sensor was used to measure the pressure peaks due to the collapse of cavitation bubbles in the high-speed tunnel of the LEGI laboratory. It was flush mounted on a stainless steel disk in the most erosive area of the test section. The recorded data were post- processed in order to get the impact load spectra for different velocities at constant cavitation number. The results are presented as cumulative histograms of peak rate and maximal impact load for different flow velocities of the high-speed tunnel.