| Abstract |
The Mach 6 flow over a blunt wedge is analyzed, with the aim to uncover the origin of a hot streak that forms on top of the wedge. Vortex identification criteria link the hot streak to a streamwise vortex, that produces a downwash at the location of the hot streak. Therefore, the hot streak is the likely consequence of the thus-enhanced frictional heating. One of the vortex identification criteria indicates that the shock is involved in the creation of the streamwise vortex, another considered criterion does not, however. A more advanced vortex analysis approach should be used to unequivocally determine the role the shock plays in the formation of the streamwise vortex on top of the wedge. Besides the shock, a strong spanwise pressure gradient along the surface of the wedge may be responsible for the creation of the streamwise vortex. In fact, an `inboard' and `outboard' streamwise vortex are identified, dwelling on opposite sides of the pressure minimum in the spanwise direction. |
| Authors |
Koen J. Groot   , Bryan J. Morreale , Jacob Smotzer , Bret Van Poppel , Ivett Leyva
|
| Journal Info |
| AIAA SCITECH 2022 Forum
|
| Publication Date |
1/3/2025 |
| ISSN |
|
Type |
article |
| Open Access |
closed
|
| DOI |
https://doi.org/10.2514/6.2025-0306 |
| Keywords |
Wedge (geometry) (Score: 0.78464246)
|
