Friction Factors for Fully Developed Turbulent Flow in Ducts With and Without Heat Transfer

[+] Author and Article Information
G. W. Maurer, B. W. LeTourneau

Bettis Atomic Power Laboratory, Operated for the U. S. Atomic Energy Commission by the Westinghouse Electric Corporation, Pittsburgh, Pa.

J. Basic Eng 86(3), 627-636 (Sep 01, 1964) (10 pages) doi:10.1115/1.3653187 History: Received July 29, 1963; Online November 03, 2011


Tests were performed with water flowing vertically upward through a 0.087-in. × 1-in. × 27-in. long rectangular channel to determine friction factors with and without heat transfer. The following range of variables was covered: Mass velocities: 0.60 × 106 to 4.0 × 106 lbm /hr-ft2 ; Heat flux: 0 to 1.6 × 106 Btu/hr-ft2 ; Inlet temperature: 59 to 510 deg F; Pressures: 300 to 2000 psia. The isothermal data confirmed the use of the hydraulic equivalent diameter with the conventional circular tube friction factors for narrow rectangular channels at Reynolds numbers from 4 × 103 to 5 × 105 . Using the results of the heated tests and the data existing in the literature, a general correlation was formulated which correlated the data for both water and air.

Copyright © 1964 by ASME
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