[IMS Seminar] Numerical boundary conditions for compressible fluid flows based on the generalized Riemann problem

ON2022-06-08TAG: ShanghaiTech UniversityCATEGORY: Lecture

Time:Friday, June 10th, 2022, 10:00-11:00

Location:Tecent Meeting

Link:  https://meeting.tencent.com/dm/N9BlY0oqqrMp  

Room Number: 778-1386-4492


Speaker:  Qinglong Zhang,  Ningbo University

Abstract: In the computation of compressible fluid flows, numerical boundary conditions are always necessary for all physical variables at computational boundaries while just partial physical variables are prescribed as boundary conditions. In this talk, we associated this issue with the one-sided generalized Riemann problem (GRP) solver so that the extrapolation technique can be actually avoided. Such a one-sided GRP solver shows significant benefits, as numerical experiments demonstrate, on avoiding spurious wave reflections at the computational boundaries. This is a joint work with Prof. J.Q. Li.