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| Numerical simulation of hypersonic viscous flow with chemical non-equilibrium effects on hybrid grid |
| Revised:April 25, 2005 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20073059 |
| KeyWord:hypersonic,chemical non-equilibrium,N-S equations,VanLeer scheme,hybrid grid |
| PAN Yong WU Yi-zhao WANG Jiang-feng |
| School of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016 |
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| Abstract: |
| Viscous flow with chemical non-equilibrium effects is numerically simulated on unstructured hybrid grid.The governing equations are 2D Navier-Stokes equations with finite rate kinetic chemical non-equilibrium model,where 7 species and 7 reactions are considered.The convective fluxes are approximated using VanLeer flux-splitting method,a MUSCL approach with Minmod limiter is implemented to increase the numerical accuracy,and central difference method for the viscous fluxes.The time integration is a 5-step explicit Runge-Kutta scheme with the consideration of chemical reacting time step.Some special modifications for hypersonic flow are made in original VanLeer scheme.Numerical results are shown for the RAMC-II flight test model and compared with the experimental data and limited related references. |
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