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RESEARCH PAPERS

General Equations for Pressure Drop for Laminar Flow in Ducts of Arbitrary Cross Sections

[+] Author and Article Information
T. Yilmaz

Department of Mechanical Engineering, Çukurova University, Adana, Turkey

J. Energy Resour. Technol 112(4), 220-223 (Dec 01, 1990) (4 pages) doi:10.1115/1.2905761 History: Received June 02, 1989; Revised July 12, 1990; Online April 16, 2008

Abstract

This paper presents general equations for pressure drop calculations for developed and developing laminar flow in ducts of arbitrary cross sections. The results obtained from these equations compare well with the theoretically calculated values available in the literature for circular, rectangular, triangular, elliptical, polygonal, casped, corner and side ducts. The maximum deviations by these comparisons are 7.3 and −4.0 percent, respectively. Besides these, the equations yield satisfactory results for eccentric and concentric annular ducts.

Copyright © 1990 by The American Society of Mechanical Engineers
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