Normal Shock Vortex Interaction
Abstract
Breakdown of a slender longitudinal vortex caused by a normal shock is studied with a numerical solution of the Euler and the Navier-Stokes equations for time-dependent, three-dimensional, supersonic flow at a free stream Mach number of 1.6 and different vortex strengths. When a breakdown occurs, a free stagnation point is formed downstream from the shock, followed by a region of reversed flow with a bubble-like flow structure. The burst part of the vortex grows in the axial and radial directions until the bubble reaches a stable position. The shock remains normal near the axis of the vortex but is curved further away from it. The flow downstream from the shock is slightly oscillating. The numerical results clearly reveal the time-dependent flow structure in the axial and the radial direction. The results compare well with recent experimental findings. (9 figures, 12 refs.)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 2003
- Accession Number
- ADA419068
Entities
People
- E. Krause
- O. Thomer
- W. Schroeder