Calculation of Friction Coefficients for Noncircular Channels-Reference-Cited by-同舟云学术

Calculation of Friction Coefficients for Noncircular Channels

Published:2004-11-01 Issue:6 Volume:126 Page:1033-1038
ISSN:0098-2202
Container-title:Journal of Fluids Engineering
language:en
Short-container-title:

Author:

He S.¹,Gotts J. A.²

Affiliation:

1. School of Engineering, The Robert Gordon University, Aberdeen AB10 1FR, U.K.

2. Engineering Division, British Energy Generation Ltd, Gloucester GL4 3RS, U.K.

Abstract

This paper presents a method for estimating a hydraulic resistance multiplier to enable approximate values of friction coefficients to be calculated for turbulent flows in noncircular channels of arbitrary shape using correlations developed for the circular pipe. Unlike most other methods, no preknowledge on the flow channels, such as the laminar shape factor or characteristic length, is required. Good agreement between predictions using the new method and experiments was achieved.

Publisher

ASME International

Subject

Mechanical Engineering

Link

http://asmedigitalcollection.asme.org/fluidsengineering/article-pdf/126/6/1033/5834530/1033_1.pdf

Reference13 articles.

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2. Lee, K. B. , 1995, “Analytical Prediction of Subchannel Friction Factor for Infinite Bare Rod Square and Trianglar Arrays of Low Pitch to Diameter Ratio in Turbulent Flow,” Nucl. Eng. Des., 157, pp. 197–203.

3. Vijayan, P. K., Pilkhwal, D. S., Saha, D., and Raj, V. V., 1999, “Experimental Studies on the Pressure Drop Across the Various Components of a PHWR Fuel Channel,” Exp. Therm. Fluid Sci., 20, pp. 34–44.

4. Gunn, D. J., and Darling, C. W. W., 1963, “Fluid Flow and Energy Losses in Non-Circular Conducts,” Trans. Inst. Chem. Eng., 41, pp. 163–173.

5. Rehme, K. , 1973, “Simple Method of Predicting Friction Factors of Turbulent Flow in Non-Circular Channels,” Int. J. Heat Mass Transfer, 16, pp. 933–950.

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