Formation of the Mach reflection in polyatomic gases
Abstract
The process of formation of the Mach reflection of a moving, plane shock wave at a wedge in a gas with high specific heat was investigated experimentally in a shock tube under rarefied flow conditions. According to the estimation made, in the present experiment the temperature rise in the shock wave was at least an order of magnitude smaller than in previous experiments in noble gases, so the heat transfer between gas and the wall was also suitably decreased. The obtained results indicate that this effect had strong influence upon the investigated phenomenon. Both the reflected and the Mach stem shocks were formed much faster than in noble gases under similar flow conditions.
- Publication:
-
Rarefied Gas Dynamics
- Pub Date:
- 1991
- Bibcode:
- 1991rgd..proc..570W
- Keywords:
-
- Gas Flow;
- Mach Reflection;
- Polyatomic Gases;
- Rarefied Gas Dynamics;
- Shock Waves;
- Degrees Of Freedom;
- Flow Distribution;
- Rare Gases;
- Shock Tubes;
- Specific Heat;
- Fluid Mechanics and Heat Transfer