Heat Transfer to a Fluid Flowing Turbulently in a Smooth Pipe with Walls at Constant Temperature

Abstract

The case of heat transfer to an incompressible fluid of constant properties flowing turbulently within a pipe having constant wall temperature has been investigated analytically. Heat transfer coefficients have been evaluated and compared to the coefficients obtained by Martinelli for the same flow conditions under the conditions of the linear variation of wall temperature obtained from a constant heat transfer rate along the pipe length. At low Prandtl numbers, such as obtain with molten metals, the ratio between the coefficients for these two cases may become as low as 0.72, with the coefficient for the constant wall temperature case being the smaller of the two. A simple equation of the Lyon type is indicated for the correlation of the present results.

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Document Details

Document Type
Technical Report
Publication Date
Sep 10, 1949
Accession Number
AD0495380

Entities

People

  • R. A. Seban
  • T. Shimazaki

Organizations

  • University of California, Berkeley

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  • Materials and Manufacturing Processes

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  • Abstracts
  • California
  • Coefficients
  • Diffusivity
  • Energy
  • Energy Transfer
  • Engineering
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  • Fluid Dynamics
  • Heat Transfer
  • Heat Transfer Coefficients
  • Mechanics
  • Military Research
  • Momentum Transfer
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  • Prandtl Number
  • Reynolds Number
  • Temperature Gradients
  • Thermal Conductivity
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