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Title: Finite element analysis of mixed convection over in-line tube bundles
Authors: Gowda, Y.T.K.
Narayana, P.A.A.
Seetharamu, K.N.
Keywords: Buoyancy
Cylinders (shapes)
Finite element method
Incompressible flow
Laminar flow
Mathematical models
Nusselt number
Prandtl number
Pressure distribution
Tubes (components)
Friction coefficients
In-line tube bundles
Richardson number
Mixed convection
finite element analysis
heat transfer
incompressible flow
tube array
Issue Date: 1998
Citation: International Journal of Heat and Mass Transfer, 41(11), 1613-1619
Abstract: Heat transfer and fluid flow over in-line bundles of cylinders have been numerically simulated. Flow is assumed as incompressible, two-dimensional and laminar. Analysis has been carried out for Reynolds numbers of 50, 100, 150 and pitch to diameter ratios (PDR) of 1.5 and 2.0 with a Prandtl number of 0.71. The effect of Richardson number (Ri = Gr/Re2) on the flow and heat transfer has been investigated for Ri = -1.0, -0.5, 0.0, +0.5 and + 1.0. Streamlines, temperature contours, average Nusselt numbers, average friction coefficients and pressure distribution around the cylinders are presented. It is observed that there is a considerable effect of buoyancy over tube bundles. ? 1998 Published by Elsevier Science Ltd. All rights reserved.
ISSN: 179310
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