Determination of friction factors and heat transfer coefficients for flow past artifically roughened surfaces Metadata

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Title

  • Main Title Determination of friction factors and heat transfer coefficients for flow past artifically roughened surfaces

Creator

  • Author: Hodge, S.A.
    Creator Type: Personal
  • Author: Sanders, J.P.
    Creator Type: Personal
  • Author: Klein, D.E.
    Creator Type: Personal

Publisher

  • Name: Oak Ridge National Laboratory
    Place of Publication: Tennessee

Date

  • Creation: 1979-11-01

Language

  • English

Description

  • Content Description: A critical review of the assumptions, theoretical foundations, and supporting experimental evidence for the analytical procedures in current use for evaluation of the effects of artificial surface roughening on friction factor and Stanton number is provided. Recommendations are given concerning the application of these procedures to rough rod bundles. A new method is demonstrated for determination of the slope and intercept of the universal logarithmic dimensionless velocity distribution law for fully rough flow past roughened surfaces without the need for experimental measurement of the velocity profile. The slope is shown to vary with the nature of the roughened surface and to deviate significantly from the slope for turbulent flow past smooth walls in some cases. It is further shown that the intercept, which is a boundary condition equivalent to the roughness parameter for friction, is independent of the width of the velocity profile. A similar method is developed for determination of the slope and intercept of the temperature distribution law, but additional experimental investigation is required before the efficacy of this application can be conclusively established.
  • Physical Description: Pages: 223

Subject

  • Keyword: Turbulent Flow
  • Keyword: Heat Transfer
  • Keyword: Fluid Flow
  • Keyword: Temperature Distribution
  • Keyword: Surface Properties 220300* -- Nuclear Reactor Technology-- Fuel Elements
  • Keyword: Fluid Mechanics
  • Keyword: Fuel Elements
  • Keyword: Friction Factor
  • Keyword: Roughness
  • Keyword: Reactor Components
  • STI Subject Categories: 22 General Studies Of Nuclear Reactors
  • Keyword: Energy Transfer
  • Keyword: Mechanics
  • Keyword: Fuel Cans
  • Keyword: Fuel Rods

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report

Format

  • Text

Identifier

  • Report No.: ORNL-5599
  • Grant Number: W-7405-ENG-26
  • DOI: 10.2172/5687673
  • Office of Scientific & Technical Information Report Number: 5687673
  • Archival Resource Key: ark:/67531/metadc1092930

Note

  • Display Note: Dep. NTIS, PC A10/MF A01.