Calculations Relative to the Thermal Entry Length for Fluids of Low Prandtl Number,

Abstract

Calculations are presented for the variation of the heat transfer coefficient in the region downstream from the point at which a fluid of constant properties having uniform initial temperature and a velocity distribution characteristic of fully developed pipe flow is subjected to a constant wall temperature different from the initial fluid temperature. The determination of heat transfer coefficients is made for a Prandtl Number of 0.01 and Reynold's Numbers of 10,000 and 100,000. The results indicate thermal entry lengths that are substantially shorter than indicated by the analysis of V. D. Sanders.

Document Details

Document Type
Technical Report
Publication Date
Jan 10, 1950
Accession Number
AD0495362

Entities

People

  • R. A. Seban
  • T. Shimazaki

Organizations

  • University of California, Berkeley

Tags

DTIC Thesaurus Topics

  • Coefficients
  • Energy Transfer
  • Flow
  • Heat Transfer
  • Heat Transfer Coefficients
  • Pipe Flow
  • Prandtl Number

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Structural Dynamics.
  • Thermal Physics or Thermal Science.