INVESTIGATION OF THE PROCESS OF ENERGY TRANSFER FROM AN INTERMITTENT JET TO SECONDARY FLUID IN AN EJECTOR-TYPE THRUST AUGMENTER.

Abstract

Besides application of high-speed temperature measuring instrumentation, a search was made for a digital computer program that could be adapted to the problem. This resulted in the evaluation of the KO code developed by the U. of Cal. Radiation Laboratory. This code uses a numerical differencing method with injection of a 'Q-term' of artificial viscosity whenever an incipient shock condition develops. The addition of the 'Q-term' in appropriate amounts prevents a discontinuity so that the computer program can then handle the shock condition and determine when and where it will develop as well.

Document Details

Document Type
Technical Report
Publication Date
Mar 31, 1964
Accession Number
AD0611137

Entities

People

  • Harry W. Sander
  • Raymond M. Lockwood

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Computer Programs
  • Computers
  • Digital Computers
  • Discontinuities
  • Energy
  • Energy Transfer
  • Instrumentation
  • Measuring Instruments
  • Radiation
  • Test And Evaluation
  • Viscosity

Readers

  • Combustion and Flow Dynamics.
  • Computer Science.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)