Accession Number : AD0495380

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

Corporate Author : CALIFORNIA UNIV BERKELEY INST OF ENGINEERING RESEARCH

Personal Author(s) : Seban, R. A. ; Shimazaki, T.

Report Date : 10 SEP 1949

Pagination or Media Count : 24

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. (Author)

Descriptors :   *LIQUID METALS), (*HEAT TRANSFER, PIPES, INCOMPRESSIBLE FLOW, PRANDTL NUMBER, TEMPERATURE, EQUATIONS, TURBULENCE, WALLS.

Subject Categories : Metallurgy and Metallography
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE