Flux splitting algorithms for two-dimensional viscous flows with finite-rate chemistryThe Roe flux-difference splitting method has been extended to treat two-dimensional viscous flows with nonequilibrium chemistry. The derivations have avoided unnecessary assumptions or approximations. For spatial discretization, the second-order Roe upwind differencing is used for the convective terms and central differencing for the viscous terms. An upwind-based TVD scheme is applied to eliminate oscillations and obtain a sharp representation of discontinuities. A two-stage Runge-Kutta method is used to time integrate the discretized Navier-Stokes and species transport equations for the asymptotic steady solutions. The present method is then applied to two types of flows: the shock wave/boundary layer interaction problems and the jet in cross flows.
Document ID
19890041038
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Shuen, Jian-Shun (NASA Lewis Research Center; Sverdrup Technology, Inc. Cleveland, OH, United States)
Liou, Meng-Sing (NASA Lewis Research Center Cleveland, OH, United States)