An extension of the Fokker-Planck method for polytatomic gas using the master equation approach is presented. The model is compatible with different Fokker-Planck formulations. An example using the cubic formulation is provided. Code-to-code comparison between the new model and the DSMC implementation in the PicLas code of the university of Stuttgart is presented using a heat bath temperature relaxation as well as two dimensional, non-reacting, hypersonic flow over a flat-faced cylinder. The heat bath test case shows very good agreement between the DSMC and Fokker-Planck implementation. The hypersonic test case compares very well qualitatively but as expected shows deviations in ares of strong thermal non-equilibrium.
Skip Nav Destination
Research Article| February 08 2024
Modeling of polyatomic gases in the kinetic Fokker-Planck method by extension of the master equation approach
AIP Conf. Proc. 2996, 060004 (2024)
Leo Basov, Martin Grabe; Modeling of polyatomic gases in the kinetic Fokker-Planck method by extension of the master equation approach. AIP Conf. Proc. 8 February 2024; 2996 (1): 060004. https://doi.org/10.1063/5.0187658
Download citation file: