Comparison of transonic flow solutions in C-D nozzles
Abstract
The method of characteristics has proven to be a highly accurate and relatively straight forward technique for computing the supersonic flow field in a two-dimensional or axisymmetric nozzle. However, the method of characteristics requires an initial value line traversing the flow in the fully supersonic region on which the flow properties are known. A parametric study of the effect of different transonic flow calculation methods for establishing the initial value line for axisymmetric converging-diverging nozzles was conducted. The Mach number and radial velocity distributions along a reference start line were calculated and compared for several different transonic solutions for a series of nozzles with different throat radii of curvature. These initial value lines were then used to initiate a method of characteristics analysis of several geometrically different axisymmetric nozzles in order to investigate the impact on calculated performance.
- Publication:
-
Final Report
- Pub Date:
- October 1974
- Bibcode:
- 1974puwl.reptR....M
- Keywords:
-
- Convergent-Divergent Nozzles;
- Transonic Flow;
- Axisymmetric Flow;
- Boundary Value Problems;
- Flow Distribution;
- Method Of Characteristics;
- Nozzle Flow;
- Two Dimensional Flow;
- Fluid Mechanics and Heat Transfer