HIGH-PRESSURE ARC-JET ABLATION CHARACTERISTICS OF TEFLON

Abstract

Experimental data and the results of analyses are presented for Teflon ablation runs carried out in the Re-Entry Studies Project Mach 2 arc-jet tunnel at the Applied Physics Laboratory Propulsion Research Laboratory. Data were obtained under the following arc chamber conditions: 25 to 140 psia and 1500 to 4000 Btu/lb. These simulate stagnation region re-entry heating environments of 8500 to 14,000 ft/sec at altitudes of 64,000 to 114,000 feet. A comparison of the data with three major theories showed that the analytical treatment of S. M. Scala closely predicted the levels and trends of the results. Teflon appears to be a considerably less efficient heat absorption material, by a factor of almost 2, than is conventionally anticipated.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1966
Accession Number
AD0648322

Entities

People

  • F. Falk
  • L. O. Kauffman
  • N. G. Paul

Organizations

  • Johns Hopkins University

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Experimental Data
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Free Stream
  • Heat Flux
  • Heat Transfer
  • High Pressure
  • Mass Transfer
  • Materials
  • Measurement
  • Physics
  • Physics Laboratories
  • Pressure Distribution
  • Research Facilities
  • Stagnation Point
  • Steady State

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Theoretical Analysis.