Characterization of a Gas/Gas, Hydrogen/Oxygen Engine

Abstract

As part of an ongoing program to develop a computational methodology to obtain high-fidelity rocket engine flow solutions, computations were performed on a single-element, gas/gas, H2/02 combustion engine. The present work examines the influence of modeling experimental features often neglected in a simulation, specifically a nitrogen curtain purge used to cool optical access. It is shown that the influence is significant and better agreement with the data can be obtained by including the nitrogen purge. Additional solutions are presented to investigate the impact of using various turbulence models on this class of problems. A linear, realizable k-epsilon model best represented the experimental data, however, it should be recognized that RANS-type turbulence models are best suited to steady, isotropic flows, which the present flowfield is not.

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Document Details

Document Type
Technical Report
Publication Date
Jun 04, 2002
Accession Number
ADA410801

Entities

People

  • M. R. Archambault
  • O. Peroomian

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Boundary Layer
  • Combustion
  • Computational Fluid Dynamics
  • Engines
  • Equations
  • Experimental Data
  • Flow
  • Fluid Dynamics
  • Geometry
  • Layers
  • Military Research
  • Rocket Engines
  • Three Dimensional
  • Turbulent Mixing
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Internal Combustion Engine (ICE) Technology.
  • Systems Analysis and Design