JSME International Journal Series B Fluids and Thermal Engineering
Online ISSN : 1347-5371
Print ISSN : 1340-8054
ISSN-L : 1340-8054
Cavitation in a V-Slot : Measurement of Impulsive Pressure
Hideo KimotoKengo Umemoto
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1994 Volume 37 Issue 1 Pages 15-21

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Abstract

In the present experiment, a single cavitation bubble is produced in a V-slot and the impulsive pressure is detected by four tiny pressure sensor elements. The size of a sensor element is 1 mm × 1 mm × 2 mm, and the four elements are set at 1.7 mm intervals along a line on the top surface of the pressure sensor. From the experimental results, the following is revealed. Impulsive pressure caused by microjet impingement in the V-slot is several MPa which is almost the same as that near the plane wall. When a bubble is produced near the bottom of the V-slot, the maximum impulsive pressure is detected at a point 3.4 mm from the point of microjet impingement, which is somewhat farther than the distance of 1.7 mm on the plane wall.

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© The Japan Society of Mechanical Engineers
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