Multi-species modeling in the particle-based ellipsoidal statistical Bhatnagar–Gross–Krook method for monatomic gas species

Multi-species modeling is implemented for the particle-based ellipsoidal statistical Bhatnagar–Gross–Krook method monatomic species in open-source plasma simulation suite PICLas. After a literature review on available multi-species extensions of kinetic model equations and approaches determination transport coefficients, Brull's former Wilke's mixing rules collision integrals latter. The implementation verified with two test cases: supersonic Couette flow hypersonic around 70 ° blunted cone. results are compared Direct Simulation Monte Carlo (DSMC) method, where good overall agreement can be achieved. However, coefficients through offers better DSMC at acceptable computational cost. For last case, comparison efficiency presented.