Program and charts for determining shock tube, and expansion tunnel flow quantities for real air
Abstract
A computer program in FORTRAN 4 language was written to determine shock tube, expansion tube, and expansion tunnel flow quantities for real-air test gas. This program permits, as input data, a number of possible combinations of flow quantities generally measured during a test. The versatility of the program is enhanced by the inclusion of such effects as a standing or totally reflected shock at the secondary diaphragm, thermochemical-equilibrium flow expansion and frozen flow expansion for the expansion tube and expansion tunnel, attenuation of the flow in traversing the acceleration section of the expansion tube, real air as the acceleration gas, and the effect of wall boundary layer on the acceleration section air flow. Charts which provide a rapid estimation of expansion tube performance prior to a test are included.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- February 1975
- Bibcode:
- 1975STIN...7521565M
- Keywords:
-
- Air Flow;
- Computer Programs;
- Flow Chambers;
- Shock Tubes;
- Fortran;
- Frozen Equilibrium Flow;
- Real Gases;
- Reflected Waves;
- Thermodynamic Properties;
- Unsteady Flow;
- Fluid Mechanics and Heat Transfer