Unsteady cavitating flow - A new cavitation model based on a modified front capturing method and bubble dynamics

J. Sauer, G. H. Schnerr

Research output: Contribution to journalArticlepeer-review

182 Scopus citations

Abstract

This paper presents a numerical approach for a new cavitation model that bases on a combination of the Volume-of-Fluid (VOF) technique with a model predicting the growth and collapse process of bubbles. This process leads to a time dependent vapor distribution in the computational domain and is modeled by the inclusion of a vapor source term in the void fraction transport equation. The cavitation model is applied for the simulation of cavitating nozzle flows and cavitating flow over a NACA 0015 hydrofoil and showed it's capability to resolve characteristic effects of cavitation such as the cyclic formation of the cavitation cloud, the formation of the re-entrant jet and the local occurrence of hydrodynamic pressure peaks due to bubble cloud collapse.

Original languageEnglish
Pages (from-to)1073-1079
Number of pages7
JournalAmerican Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED
Volume251
StatePublished - 2000
Externally publishedYes

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