Measurements of the Cavitation Threshold of Liquids Under Dynamic Stressing by Pulses of Tension

Williams, P. R. Williams; Williams, Rhodri

Abstract

This paper addresses discrepancies between the results of different measurements of the effective tensile strength F(F c ) of liquids, in experiments in which a pulse of tension (or ’negative pressure’) is created by the reflection of a pressure pulse at a suitable boundary. We show that a key feature of the pressure records previously reported in experiments such as the ‘Bullet-Piston’ (B-P) pulse-reflection apparatus [1] may have been misinterpreted. The first complete account of such pressure records is reported here. We also report a new method of estimating F e in a modified B-P apparatus and the results obtained indicate that samples of degassed, deionised water can sustain tensions which are an order-of-magnitude greater than previously reported in B-P work. Results are also reported for work involving samples of Newtonian silicone oils, for which the dependence of F c on shear viscosity, μ, found in this work confirms that of an earlier study although the absolute values of F c are found to be considerably greater than previously reported.

Citation

Williams, P. R. W., & Williams, R. (2002, February). Measurements of the Cavitation Threshold of Liquids Under Dynamic Stressing by Pulses of Tension. Presented at NATO Advanced Research Workshop on Liquids Under Negative Pressure

• Presentation Conference Type: Conference Paper (Published)
• Conference Name: NATO Advanced Research Workshop on Liquids Under Negative Pressure
• Start Date: Feb 23, 2002
• End Date: Feb 25, 2002
• Publication Date: 2002
• Deposit Date: Jul 26, 2016
• Publisher: Springer
• Pages: 285-300
• Series Title: NATO Science Series
• Series Number: 84
• Series ISSN: 1568-2609
• Book Title: Liquids Under Negative Pressure: Proceedings of the NATO Advanced Research Workshop on Liquids Under Negative Pressure
• ISBN: 978-1-4020-0896-2, 978-94-010-0498-5
• DOI: https://doi.org/10.1007/978-94-010-0498-5_24
• Public URL: http://researchrepository.napier.ac.uk/Output/315534