Numerical study of real gas effects during bubble collapse using a disequilibrium multiphase model.

ABSTRACT: An explicit density-based solver of the Euler equations for inviscid and immiscible gas-liquid flow media is coupled with real-fluid thermodynamic equations of state supporting mild dissociation and calibrated with shock tube data up to 5000 K and 28 GPa. The present work expands the original 6-equation disequilibrium method by generalising the numerical approach required for estimating the equilibrium pressure in computational cells where both gas and liquid phases co-exist while enforcing energy conservation for all media. An iterative numerical procedure is suggested for taking into account the properties of the gas content as derived from highly non-linear real gas equations of state and implemented in a tabulated form during the numerical solution. The developed method is subsequently

SUBMITTER: Bidi S 

PROVIDER: S-EPMC9561916 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature