Incompressible Flow Friction Coefficients in a Simulated Heat Pipe

Abstract

This thesis examines the combined effects of pressure gradients and blowing and suction on frictional forces in a heat pipe with relatively low radial Reynolds numbers. A porous tube is used to simulate the heat pipe and a vacuum pump is used to generate the air flow. By measuring the static pressure variation along the pipe wall and using a one-dimensional, incompressible, numerical model, the frictional forces are obtained and compared to laminar fully-developed theoretical values. Keywords: Heatpipe, Porous pipe, Friction factor, Friction coefficient, Blowing, Suction, Injection, Extraction.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1988
Accession Number
ADA203176

Entities

People

  • David A. Manley

Organizations

  • Air Force Institute of Technology

Tags

DTIC Thesaurus Topics

  • Air Force
  • Balances
  • Barometric Pressure
  • Boundary Layer
  • Compressible Flow
  • Flow
  • Fluid Dynamics
  • Heat Pipes
  • Incompressible Flow
  • Measurement
  • Pressure Distribution
  • Pressure Gradients
  • Pressure Measurement
  • Pressure Transducers
  • Reynolds Number
  • Static Pressure
  • Turbulent Flow

Fields of Study

  • Engineering

Readers

  • Fluid Dynamics.
  • Thermal Physics or Thermal Science.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).