Accession Number:

ADA207606

Title:

User's Guide to CUNIFLOW

Descriptive Note:

Final rept. 1 Oct 1981-30 Sep 1988

Corporate Author:

ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFB TN

Personal Author(s):

Report Date:

1989-04-01

Pagination or Media Count:

115.0

Abstract:

CUNIFLOW is a fast, mature code for calculating th hypersonic flow of an inviscid reacting gas over an axisymmetric or planar body. The thermochemical model allows for the finite-rate chemical relaxation of an arbitrary mixture of perfect gases and the coupling of dissociation with nonequilibrium vibrational relaxation. Options for calculating the effects of radiant energy loss, of nonuniform free-stream conditions, and of boundary-layer displacement are available. A particular advantage of the code, in addition to its speed, is that it can often be made to complete a calculation for near-equilibrium situations where other reacting flow codes encounter difficulties. This report summarizes the thermophysical models and the computational methods embodied in the code and provides instructions for inputting a problem and interpreting the output. The computational time for a standard configuration is plotted as a function of centerline velocity for various values of the binary scaling parameter. Hypersonic flow, Thermochemical model, Axisymmetric body, Planar body.

Subject Categories:

  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE