User's Guide to CUNIFLOW

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.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1989
Accession Number
ADA207606

Entities

People

  • James T. Curtis

Organizations

  • Arnold Engineering Development Complex

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Algorithms
  • Bodies
  • Boundary Layer
  • Bow Shock
  • Chemical Reactions
  • Computational Fluid Dynamics
  • Computational Science
  • Computer Programs
  • Differential Equations
  • Dynamics
  • Flow
  • Fluid Dynamics
  • Free Stream
  • Geometry
  • Payload
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Computer Science.
  • Fluid Dynamics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flight