Shock structure near a wall in pure inert gas and in binary inert gas mixtures
Abstract
Flow data for pure argon were collected for shock Mach numbers = 2.24, 3.55, 6.46 and 9.21. Density was measured with a multibeam laser differential interferometer. These data are compared with numerical results of a direct simulation Monte Carlo method. Flow becomes two dimensional where a shock wave touches a wall although strong wall influence is limited to one mean free path distance from the wall. Numerical results agreement with measurements varies, but can be improved by applying a proper intermolecular force potential and accommodation coefficient. The BGK model density profiles deviate considerably from numerical and experimental results. Wall material greatly influences density profiles.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- 1983
- Bibcode:
- 1983STIN...8416517S
- Keywords:
-
- Argon;
- Binary Fluids;
- Gas Flow;
- Shock Wave Interaction;
- Wall Flow;
- Density Distribution;
- Interferometers;
- Mach Number;
- Monte Carlo Method;
- Two Dimensional Flow;
- Fluid Mechanics and Heat Transfer