Abstract
A least-squares-matching technique is presented to analyze fully developed laminar fluid flow and heat transfer in ducts of arbitrary cross-section. Forced convection heat transfer is considered under constant axial heat-transfer rate with arbitrary peripheral thermal boundary conditions. As an application of the method, flow and heat-transfer results are presented for the duct geometries of isosceles triangular, rounded corner equilateral triangular, sine, rhombic and trapezoidal cross-sections. These numerical results are discussed from a heat exchanger designer's viewpoint.
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