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Home Archives Thermal Letter Officers Future meetings Assembly for International Heat Transfer Conferences

ISSN Print: 2377-424X

International Heat Transfer Conference 3
August, 7-12, 1966, Chicago, USA

LAMINAR FLOW AND HEAT TRANSFER CHARACTERISTICS IN REGULAR POLYGONAL DUCTS

Get access DOI: 10.1615/IHTC3.1590
pages 64-76

Abstract

The method of point matching was applied to fully developed laminar flow and heat transfer in noncircular passages consisting of regular polygons with a linearly varying axial wall temperature. The velocity distributions, mass flow rates, friction factor - Reynolds number relationships, wall shear stress distributions, temperature distributions, limiting Nusselt numbers and local temperature gradients along the boundary, were calculated for various regular polygons. It is pointed out that the method can also be applied to annular ducts and the cases with uniform heat sources and viscous dissipation effects. The accuracy of the method was assessed by using the exact solution for a square duct. For triangular and hexagonal ducts, some results of an analog solution by the Moire method were compared with the exact solution or the point matching method and good agreement was obtained.
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