ZEUS User Manual 'Real Gas' Effects
Abstract
This report describes the extension and application of the ZEUS code to high, hypersonic Mach numbers by incorporating high-temperature equilibrium air or 'real gas' effects. This approach is important for accurate aerodynamic predictions in support of atmospheric reentry vehicles with high maneuverability and future hypersonic weapons. The program employs an automatic multiple zone grid generation technique which is particularly suited to describing missile- type geometries in supersonic flight. The ZEUS code is a supersonic hypersonic space-marching Euler solver which is capable of computing internal as well as external flows. The present report provides recent modifications to the program (described in Reference 2) for real gas effects and user instructions for its application. The ZEUS code uses a zonal, finite volume, second order Godunov scheme to integrate the Euler equations. The computation proceeds for an initial data plane on which the flow field is specified, as shown in Figure 1, and marches in a streamwise direction until the end of the region of interest is encountered. In the case of a missile, the initial data plane is taken near the nose of the missile, and the flow field on this plane can be defined using conical flow, a blunt body solution, or uniform flow.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 06, 1991
- Accession Number
- ADA242224
Entities
People
- A. B. Wardlaw Jr.
- F. J. Priolo
Organizations
- Naval Surface Warfare Center