Modeling Primary Atomization Processes

Abstract

The contributions of atomization processes to combustion instabilities in liquid rocket engines has been assessed via a series of analytic/numerical models. Simulations of high-speed injection of a viscous jet have revealed a jet "swelling" phenomenon for the first time. Modeling of F-1 fuel injectors reveals a potential instability of the fuel columns to transverse acoustic modes in injector designs which showed large instabilities. Limited experimental work relevant to hybrid rocket injection has also been accomplished under the subject program. A new consumable, catalytic igniter has shown to provide reliable, reproducible ignition in hydrogen peroxide/polyethylene hybrid engines. Currently, a complete dense spray simulation tool is under development to assess spray dynamics under time-varying chamber conditions.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1999
Accession Number
ADA360433

Entities

People

  • Stephen D. Heister

Organizations

  • Purdue University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Combustion
  • Computational Fluid Dynamics
  • Computational Science
  • Ignition
  • Ignition Systems
  • Materials
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Resonant Frequency
  • Rocket Engines
  • Rocket Oxidizers
  • Surface Properties
  • Three Dimensional
  • Turbulent Mixing
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Computational Fluid Dynamics (CFD)
  • Rocket Propulsion.