Convective Heat Transfer for Ship Propulsion.

Abstract

Measurements of heat transfer parameters in pulsating and steady forced turbulent air flow through a vertical circular tube, which was resistively heated, are reported. Inlet Reynolds numbers varied from 19,000 to 102,000; Mach numbers were 0.15 or below; pulsation frequencies ranged from 2.1 to 3.6 Hz and the peak-to-peak pressure fluctuations varied from 9 to 29 percent of the mean pressure. At these conditions the non-dimensional frequency a = r sq. root 2(3.14)f/frequency, varied from about 4 to 7 1/2; in laminar flow, quasi-steady approximations became weak when this frequency becomes greater than about two, but for turbulent heat transfer in this Reynolds number range the limitations are still to be determined.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1982
Accession Number
ADA124817

Entities

People

  • D. M. Mceligot
  • J. S. Park
  • M. F. Taylor

Organizations

  • University of Arizona

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Flow
  • Boundary Layer
  • Computational Fluid Dynamics
  • Engineering
  • Fluid Dynamics
  • Fluid Mechanics
  • Frequency
  • Gas Flow
  • Heat Transfer
  • Hydrodynamics
  • Mach Number
  • Measurement
  • Mechanical Engineering
  • Mechanics
  • Reynolds Number
  • Standing Waves
  • Steady Flow

Fields of Study

  • Physics

Readers

  • Electronics Engineering
  • Fluid Mechanics and Fluid Dynamics.