Cross Flow Instability of Supersonic Flow over a 4:1 Elliptic Cone.
Abstract
The cross flow-initiated transition process over the surface of a supersonic 4:1 elliptic cone with 17.5 degree half-angle has been investigated using state-of-the-art local and PSE stability analyses. The basic flow was computed using the AFWAL PNS code. The local stability analysis was performed in order to find the regions and parameter ranges in which the cross flow vortex is unstable. The PSE analyses were then carried out in order to study the nonparallel effects of the flow on the most dangerous vortices--those with the greatest growth. The PSE analyses predict much greater amplification of the cross flow vortices and transition near the apex of the cone compared to the local analysis. (AN)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 20, 1995
- Accession Number
- ADA291128
Entities
People
- G. K. Stuckert
- Shilin Huang
- Th Herbert