Estimation of cavitation erosion intensity using CFD: Numerical comparison of three different methods
Paper in proceedings, 2015

The material erosion potentially caused by cavitation is a major problem in propulsion and hydro-machinery. In order to numerically predict the cavitation erosion several methodologies have been presented in the literature. In this paper we look into three different approaches for obtaining estimates of the potential cavitation erosion intensity from CFD simulations: two using the pressure or the vapour fraction obtained from macroscopic simulation and one based on the pressure obtained from microscopic bubble dynamics. The three methods are applied to the case of cavitating flow over a NACA0015 foil. None of the methods was found to successfully predict the erosive behavior. This results highlight the need for further work in this area.

Erosion

Cavitation

Discrete Bubble Method

CFD

Author

Claes Eskilsson

Chalmers, Shipping and Marine Technology, Marine Technology

Rickard Bensow

Chalmers, Shipping and Marine Technology, Marine Technology

Proceedings of the Fourth International Symposium on Marine Propulsors

Vol. 1 9-16

Areas of Advance

Transport

Infrastructure

C3SE (Chalmers Centre for Computational Science and Engineering)

Subject Categories

Vehicle Engineering

Fluid Mechanics and Acoustics

More information

Created

10/8/2017