Aerothermodynamic aspects of an axisymmetric resonance tube
Abstract
An experimental and theoretical investigation of the thermodynamics and gas dynamics of a blunt-edged, axisymmetric resonance tube driven by critical/underexpanded, critical and subcritical air jets was conducted. Resonance tube endwall pressures and temperatures were measured for these jet flow conditions, and for various nozzle/resonance tube spacings. Of particular interest to this study were the instantaneous pressure variations for the subcritical case with a nozzle trip wire. Time- and space-averaged compression and expansion wave velocities were determined. Using these data, a simple wave diagram and a state-plane diagram were constructed. These diagrams assist in the understanding of this very complex aerothermodynamic phenomenon.
- Publication:
-
2nd Thermophysics and Heat Transfer Conference
- Pub Date:
- May 1978
- Bibcode:
- 1978tpht.conf.....P
- Keywords:
-
- Aerothermodynamics;
- Cavity Resonators;
- Circular Tubes;
- Jet Flow;
- Critical Flow;
- Gas Heating;
- Shock Wave Propagation;
- Stagnation Temperature;
- Subcritical Flow;
- Wall Pressure;
- Wall Temperature;
- Fluid Mechanics and Heat Transfer