Density based CFD-techniques for simulation of cavitation induced shock emission

S. J. Schmidt, M. Thalhamer, G. H. Schnerr

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The aim of the present investigation is the modelling and simulation of the dynamic phase transition of complex 3-D unsteady liquid flows including the formation and propagation of collapse-induced shocks. We therefore developed the CFD-Tool CATUM - CAvitation Technische Universität München, which is a conservative finite volume method based on the weak form of the balance laws for mass, momentum and energy. For this investigation, the employed thermodynamic model is based on an equation of state for liquid water (modified Tait equation), on one for water vapour (ideal gas law), and on one for saturated water/vapour states (Oldenbourg polynomials). The calculation of the numerical fluxes is based on the theory of characteristics, including a necessary modification of the pressure flux to enable the simulation of steady and unsteady low Mach number flow without the use of preconditioning. We present 3-D numerical simulations and compare the obtained results with experimental visualisations.

Original languageEnglish
Title of host publication8th European Conference on Turbomachinery
Subtitle of host publicationFluid Dynamics and Thermodynamics, ETC 2009 - Conference Proceedings
EditorsF. Heitmeir, F. Martelli, M. Manna
PublisherVerlag der Technischen Universitat Graz
Pages197-208
Number of pages12
ISBN (Electronic)9783851250367
StatePublished - 2009
Event8th European Conference on Turbomachinery: Fluid Dynamics and Thermodynamics, ETC 2009 - Graz, Austria
Duration: 23 Mar 200927 Mar 2009

Publication series

Name8th European Conference on Turbomachinery: Fluid Dynamics and Thermodynamics, ETC 2009 - Conference Proceedings

Conference

Conference8th European Conference on Turbomachinery: Fluid Dynamics and Thermodynamics, ETC 2009
Country/TerritoryAustria
CityGraz
Period23/03/0927/03/09

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