Acoustic CFL

Acoustic CFL in multiphase flows?

For two-phase calculations with mixture, Ansys Fluent gives access to the acoustic & convective CFLs of the mixture.

The sound speed of the mixture is based on the following formulation and the acoustic CFL of the mixture relies on a sound speed based on both phase properties.

The acoustic CFL of each phase can be extracted using custom field functions (CFF).

Such CFF can be used in all post-treatments, for example contours and reports.

Please see attached document for further details.