the National Natural Science Foundation of China(Grant Nos.11872024,and 12002131);the China Postdoctoral Science Foundation(Grant No.2020M672347).
A discrete unified gas kinetic scheme(DUGKS)is developed for multi-species flow in all flow regimes based on the Andries-Aoki-Perthame(AAP)kinetic model.Although the species collision operator in the AAP model conserv...