Simulated Heat-Pipe Vapor Dynamics

Abstract

This dissertation describes work done to establish functional relationships for friction coefficients that can be used in simple, one- dimensional heat-pipe vapor models. Expressions for friction coefficients were derived that can be used to design heat pipes for compressible-flow situations (Mach numbers as high as one) with very large mass injection/extraction rates (radial Reynolds numbers ranging from tor-100 to tor-20,000). In order to establish these relationships, a simulated heat pipe was studied. Pressure variations axially and velocity variations axially and radially along the simulated heat pipe were experimentally measured. Turbulent transition in the heat pipe was also experimentally studied. The experimental data was used to show that numerical solutions gave valid results.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1987
Accession Number
ADA182592

Entities

People

  • W. J. Bowman

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Compressible Flow
  • Computational Fluid Dynamics
  • Computational Science
  • Energy
  • Energy Transfer
  • Fluid Dynamics
  • Heat Transfer
  • Hydrodynamics
  • Incompressible Flow
  • Mach Number
  • Mass Transfer
  • Measurement
  • Pressure Distribution
  • Pressure Measurement
  • Reynolds Number
  • Stratified Fluids

Readers

  • Fluid Dynamics.
  • Thermal Physics or Thermal Science.