Thermal Boundary Layer Effects on Mass Sampling from a Shock Tube
Abstract
The time-of-flight method was applied to the study of thermal boundary layer effects on the sampled gas in a shock-tube mass-sampling system. The effective stangnation temperatures measured by this method agree well with those calculated on the basis of a simple gas-dynamic model for orifice flow through a developing thermal boundary layer in a stagnation Reynolds number range larger than 400, The effect of change in the stagnation temperature on the density of the sample gas was also examined, and the observed density was found to be consistent with the time history of the measured effective stagnation temperature.
- Publication:
-
Japanese Journal of Applied Physics
- Pub Date:
- January 1984
- DOI:
- 10.1143/JJAP.23.118
- Bibcode:
- 1984JaJAP..23..118T
- Keywords:
-
- Gas Density;
- Molecular Beams;
- Shock Tubes;
- Stagnation Temperature;
- Thermal Boundary Layer;
- Time Of Flight Spectrometers;
- Reynolds Number;
- Sampling;
- Fluid Mechanics and Heat Transfer