Numerical simulation of unsteady cavitation in liquid hydrogen flows
Résumé
An unsteady cavitation model in liquid hydrogen flow is studied in the context
of compressible, two-phase, one-fluid inviscid solver. This is accomplished by applying three
conservation laws for mixture mass, mixture momentum and total energy along with gas volume
fraction transport equation, with thermodynamic effects. Various mass transfers between phases
are utilised to study the process under consideration. A numerical procedure is presented for the
simulation of cavitation due to rarefaction and shock waves. Attention is focused on cavitation
in which the simulated fluid is liquid hydrogen in cryogenic conditions. Numerical results are in
close agreement with theoretical solutions for several test cases. The current numerical results
show that liquid hydrogen flow can be accurately modelled using an accurate inviscid approach
to describe the features of thermodynamic effects on cavitation.
Origine : Fichiers produits par l'(les) auteur(s)