Accession Number:

ADA242224

Title:

ZEUS User Manual 'Real Gas' Effects

Descriptive Note:

Summary rept. Aug 90-Feb 91,

Corporate Author:

NAVAL SURFACE WARFARE CENTER SILVER SPRING MD

Personal Author(s):

Report Date:

1991-05-06

Pagination or Media Count:

96.0

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.

Subject Categories:

  • Fluidics and Fluerics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE