Computation of nonequilibrium flows using PNS equations
Abstract
The laminar, hypersonic flow of five-species (N2, O2, NO, N, O) nonequilibrium air over a 10 degree axisymmetric cone is computed using a non-iterative, implicit finite-difference scheme. The numerical algorithm is based on central differencing of the inviscid and viscous fluxes. Two gas models are considered in this study - one in which the constituent species are both calorically and thermally perfect and the other in which the constituent species are only thermally perfect. The effects of the two gas models and the types of wall boundary conditions on the computed solution are studied and discussed.
- Publication:
-
Proceedings of the Fluid Dynamics Symposium in Honour of Professor R. Narasimha on his 60th Birthday
- Pub Date:
- July 1993
- Bibcode:
- 1993fldy.proc..137P
- Keywords:
-
- Chemical Reactions;
- Computational Fluid Dynamics;
- Finite Difference Theory;
- Hypersonic Flow;
- Laminar Flow;
- Navier-Stokes Equation;
- Nonequilibrium Flow;
- Parabolic Differential Equations;
- Reacting Flow;
- Algorithms;
- Boundary Conditions;
- Gas Composition;
- Fluid Mechanics and Heat Transfer