Abstract
Previous work on the correlation of dissociative non-equilibrium effects on the flow field in the front of blunt bodies considered the dependence of the dimensionless shock stand-off distance on the dimensionless dissociation rate immediately after the normal shock in the simple case of a diatomic gas with only one reaction. In this paper, the correlation is corrected to take into account the additional parameter of the dimensionless free stream kinetic energy, and extended to the case of complex gas mixtures with many species and many reactions, by introducing a new reaction rate parameter that has a clear physical meaning, and leads to an approximate theory for the stand-off distance. Extensive new experimental results and numerical computations of air, nitrogen and carbon dioxide flow over spheres were obtained over a large range of total enthalpy. The results comprise surface heat flux measurements and differential interferograms. Both experimental results and numerical computations substantiate the approximate theory.
| Original language | English |
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| Title of host publication | 33rd Aerospace Sciences Meeting and Exhibit |
| Publisher | American Institute of Aeronautics and Astronautics Inc, AIAA |
| Publication status | Published - 1 Jan 1995 |
| Externally published | Yes |
| Event | 33rd Aerospace Sciences Meeting and Exhibit, 1995 - Reno, United States Duration: 9 Jan 1995 → 12 Jan 1995 |
Conference
| Conference | 33rd Aerospace Sciences Meeting and Exhibit, 1995 |
|---|---|
| Country/Territory | United States |
| City | Reno |
| Period | 9/01/95 → 12/01/95 |
ASJC Scopus subject areas
- Space and Planetary Science
- Aerospace Engineering