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Entropy Analysis in Pipe Flow Subjected to External Heating
Open AccessArticle

Entropy Generation in Laminar Fluid Flow through a Circular Pipe

Department of Mechanical Engineering, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
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Entropy 2003, 5(5), 404-416; https://doi.org/10.3390/e5050404
Received: 21 November 2002 / Accepted: 1 June 2003 / Published: 31 December 2003
(This article belongs to the Special Issue Entropy Generation in Thermal Systems and Processes)
A numerical solution to the entropy generation in a circular pipe is made. Radial and axial variations are considered. Navier-Stokes equations in cylindrical coordinates are used to solve the velocity and temperature fields. Uniform wall heat flux is considered as the thermal boundary condition. The distribution of the entropy generation rate is investigated throughout the volume of the fluid as it flows through the pipe. Engine oil is selected as the working fluid. In addition, water and Freon are used in a parametric study. The total entropy generation rate is calculated by integration over the various cross-sections as well as over the entire volume. View Full-Text
Keywords: entropy; generation; numerical; two-dimensional; heating; pipe entropy; generation; numerical; two-dimensional; heating; pipe
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Sahin, A.Z.; Ben-Mansour, R. Entropy Generation in Laminar Fluid Flow through a Circular Pipe. Entropy 2003, 5, 404-416.

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