Incompressible Flow Friction Factors in a Simulated Heat Pipe

Abstract

Porous pipes with blowing and suction are used to simulate the vapor flow in heat pipes. A computer program for steady, two-dimensional, boundary- layer flow has been written to find friction factors using the axial pressure distributions measured in an experiment with incompressible flow in a porous pipe. The results for some existing experimental data are presented and compared to previously published solutions for fully-developed flow. Also, this program has been modified to numerically simulate porous pipe flow without using axial pressure distribution as an input. This 'simulation' program furnishes additional results for comparison to the original data reduction program. It is observed that the simulation program accurately computes friction factors and flow separation points in a porous pipe with low radial Reynolds number. Theses.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1989
Accession Number
ADA216288

Entities

People

  • James E. Mayhew

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Air Force
  • Boundary Layer
  • Boundary Layer Flow
  • Computer Programs
  • Data Reduction
  • Engineering
  • Equations
  • Heat Pipes
  • Incompressible Flow
  • Mass Flow
  • Mechanical Engineering
  • Navier Stokes Equations
  • Pressure Distribution
  • Pressure Gradients
  • Radial Velocity
  • Reynolds Number
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Computational Modeling and Simulation
  • Fluid Dynamics.