Numerical and experimental study of flow and heat transfer around a tube in cross-flow at low Reynolds number

Buyruk, E. and Johnson, M. W. and Owen, I. (1998) Numerical and experimental study of flow and heat transfer around a tube in cross-flow at low Reynolds number. International Journal of Heat and Fluid Flow, 19 (3). pp. 223-232. ISSN 0142-727X

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Item Type:Article
Item Status:Live Archive

Abstract

A numerical and experimental study of the laminar flow and heat transfer characteristics of a cylinder in cross-flow is presented. The computational technique used is a stream function-vorticity formulation of the laminar flow steady state incompressible. Navier-Stokes and energy equations and uses a Gauss-Seidel over-relaxation technique to obtain stream function and temperature distributions. Calculations are presented for an isothermally heated single tube in a duct with different blockage ratios. The variation of local Nusselt number, pressure and also isotherm and streamline contours are predicted with Reynolds number of 120 and 390. For the Reynolds number of 390, the local Nusselt number distributions are shown to be similar to those obtained through measurement of the local heat flux from the surface of a tube using a micro-foil heat flow sensor. A numerical and experimental study of the laminar flow and heat transfer characteristics of a cylinder in cross-flow is presented. The computational technique used is a stream function-vorticity formulation of the laminar flow steady state incompressible Navier-Stokes and energy equations and uses a Gauss-Seidel over-relaxation technique to obtain stream function and temperature distributions. Calculations are presented for an isothermally heated single tube in a duct with different blockage ratios. The variation of local Nusselt number, pressure and also isotherm and streamline contours are predicted with Reynolds number of 120 and 390. For the Reynolds number of 390, the local Nusselt number distributions are shown to be similar to those obtained through measurement of the local heat flux from the surface of a tube using a micro-foil heat flow sensor.

Keywords:Cylinders (shapes), Heat convection, Heat exchangers, Heat flux, Laminar flow, Navier Stokes equations, Nusselt number, Reynolds number, Temperature distribution, Cross flow, Gauss Seidel over relaxation technique, Pipe flow, cylinder, fluid flow, heat transfer, cylinders, heat transfer
Subjects:H Engineering > H100 General Engineering
H Engineering > H141 Fluid Mechanics
Divisions:College of Science > School of Engineering
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ID Code:18272
Deposited On:20 Aug 2015 08:10

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