Heat Transfer ad Thermal Management in a Pulsed Detonation Engine

Abstract

The unsteady nature of the Pulsed Detonation Engine (PDE) cycle creates a thermal environment fundamentally different from steady flow cycles. Gas velocities in a detonation tube range from O(-1) to O(1000) within a single cycle. This broad range of velocities and flow reversal make it difficult to determine analytically the contribution to the beat load from the purging filling detonating and blow down portions of the cycle. In this paper the overall heat load on a detonation tube is measured calorimetrically in an aluminum water-cooled detonation tube. The effects of operating parameters such as fill fraction purge fraction ignition delay equivalence ratio and cycle frequency are examined. Equivalence ratio and cycle frequency are found to have the largest effect on detonator tube heat load.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2003
Accession Number
ADA454350

Entities

People

  • Frederick Schauer
  • John Hoke
  • Royce Bradley

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Computational Science
  • Control Systems
  • Detonations
  • Detonators
  • Flow
  • Flow Rate
  • Frequency
  • Heat Transfer
  • Heat Transfer Coefficients
  • Ignition
  • Ignition Lag
  • Measurement
  • Military Research
  • Research Facilities
  • Temperature Control

Fields of Study

  • Engineering

Readers

  • Electronics Engineering
  • Rocket Propulsion.
  • Thermal Physics or Thermal Science.