Prandtl-Meyer function for dense gases
Abstract
The present consideration of the nonclassical behavior of the Prandtl-Meyer function in the dense-gas regime shows the function to decrease, rather than increase, with Mach number: at densities, temperatures, and Mach numbers such that the (equation-defined) parameter J is positive. The J-greater-than-0 condition is shown to be easily encountered in fluids, albeit only at pressures and temperatures which correspond to the dense gas regime. The nonclassical behavior may be expected in heavier hydrocarbons and fluorocarbons, rather than such light substances as He or molecular N.
- Publication:
-
AIAA Journal
- Pub Date:
- February 1992
- DOI:
- 10.2514/3.10956
- Bibcode:
- 1992AIAAJ..30..561C
- Keywords:
-
- Gas Density;
- Ideal Gas;
- Prandtl-Meyer Expansion;
- Steady Flow;
- Isentropic Processes;
- Rankine Cycle;
- Thermodynamic Properties;
- Wind Tunnels;
- Thermodynamics and Statistical Physics