1. Finite rate chemistry for USA-series codes - Formulation and applications
- Author
-
S. Palaniswamy, D. K. Ota, and S.R. Chakravarthy
- Subjects
Physics ,Partial differential equation ,Discretization ,Chemistry ,business.industry ,Relaxation (iterative method) ,Perfect gas ,Computational fluid dynamics ,symbols.namesake ,Inviscid flow ,Total variation diminishing ,Euler's formula ,symbols ,Applied mathematics ,Statistical physics ,business - Abstract
The USA-series of CFD codes are based on unified solution algorithms including explicit and implicit formulations, factorization and relaxation approaches, time marching and space marching methodologies, etc., in order to be able to solve a very wide class of CFD problems using a single framework. Euler or Navier-Stokes equations are solved using a finite-volume treatment with upwind Total Variation Diminishing discretization for the inviscid terms. Recently, these codes have been enlarged to also unify different aerothermodynamic options (perfect gas, real gas including equilibrium and nonequlibrium chemistry). This paper describes aspects of the finite-rate-chemistry capability. 27 references.
- Published
- 1989