The Boundary Layer on a Sharp Cone in High-Enthalpy Flow
The boundary layer on a 5 deg. half-angle cone is studied by measurement of the heat flux distribution and by qualitative flow visualisation. In the laminar layer, heat flux levels are higher in air than in nitrogen because of a larger heat release from oxygen recombination at the wall. By varying the specific reservoir enthalpy in air and N2, and from measurements in CO2, it is found that real-gas effects stabilize the boundary layer.
Key wordsHypervelocity Boundary layer transition Experiment
Unable to display preview. Download preview PDF.
- Demetriades A (1974) Hypersonic viscous flow over a slender cone, Part III: Laminar instability and transition. AIAA Paper 74–535. Palo Alto, CaliforniaGoogle Scholar
- Germain P, Cummings E, Hornung H (1993) Transition on a sharp cone at high enthalpy; new measurements in the shock tunnel T5 at GALCIT. AIAA Paper 93–0343, Reno, NevadaGoogle Scholar
- Schultz DL, Jones TV (1973) Heat transfer measurements in short duration facilities. AGARD Report 165Google Scholar
- Stetson KF, Thompson ER, Donaldson JC (1983) Laminar boundary layer stability experiments on a cone at Mach 8, Part 1: Sharp cone. AIAA Paper 83–1761, Danvers, MassachusettsGoogle Scholar
- Stetson KF, Thompson ER, Donaldson JC, Siler LG (1989) Laminar boundary layer stability experiments on a cone at Mach 8, Part 5: Tests with a cooled model. AIAA Paper 89–1895, Buffalo, New YorkGoogle Scholar
- Stuckert GK, Reed HL (1990) Stability of hypersonic, chemically reacting viscous flows. AIAA Paper 90–1529, Seattle, Washington.Google Scholar