SIMPLIFIED METHOD FOR SOLVING PROBLEMS INVOLVING CHEMICALLY REACTING ONE-DIMENSIONAL FLOW

Abstract

A simplified technique for solving 'stiff' differential equations common to chemically reacting quasi-one-dimensional inviscid nonequilibrium flow analyses is presented. The method is basically that used by Degroat and Abbett with the generalization made to allow for a prescribed area distribution rather than the constant pressure (and hence constant velocity) process assumed by them. In addition, the equations are written for hydrogen/air combustion rather than methane/air. The advantage of the technique is that the chemical kinetic calculations can be solved quickly without loss of accuracy, and thus can be regelated to the status of a subroutine in complicated fluid-dynamic problems.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1969
Accession Number
AD0683260

Entities

People

  • I. T. Osgerby

Organizations

  • Arnold Engineering Development Complex

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Accuracy
  • Air Force
  • Burning Rate
  • Chemical Reaction Properties
  • Chemical Reactions
  • Combustion
  • Differential Equations
  • Engineering
  • Equations
  • Flow
  • Hydrogen
  • Ignition
  • Ignition Lag
  • Payload
  • Pressure Distribution
  • Static Pressure

Readers

  • Combustion science or combustion engineering.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Fluid Dynamics.