Basic Studies of Body Vortices at High Angles of Attack and Supersonic Speeds.
Abstract
The problem of computing the steady inviscid supersonic flows about tangent ogive cylinders at high angles of attack with symmetric body vortices is solved in this report. To obtain an efficient procedure the steady Euler equations are used as the basic governing equations as opposed to the more complicated Navier-Stokes equation. the viscous effects, important near the separation line, are simulated by a Kutta condition. The rest of the flow field is essentially controlled by the inviscid equations. The equations, written in conservation form in generalized curvilinear coordinates, are approximated by MacCormack's second-order accurate predictor-corrector algorithm. The flow tangency conditions at the body surface are satisfied by Abbett's scheme and the outer bow-shock position by the Rankine-Hugoniot jump relations. Internal shock waves or tangentially discontinuities are captured.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1980
- Accession Number
- ADA102241
Entities
People
- Goetz H. Klopfer
- Jack N. Nielsen
Organizations
- Nielsen Engineering & Research (United States)