Numerical Based Heat Transfer and Friction Factor Correlations of Rectangular Ducts Roughened With Transverse Perforated Baffles

Sunil CHAMOLI; Narendra Singh THAKUR

Authors

Sunil CHAMOLI Research Scholar, Centre for Energy and Environment, National Institute of Technology, Hamirpur 177005
Narendra Singh THAKUR Centre for Energy and Environment, National Institute of Technology, Hamirpur 177005

Keywords:

CFD, Nusselt number, perforated baffles, open area ratio

Abstract

A numerical investigation has been carried out for a range of flow and geometrical parameters in order to analyze the effect of transverse perforated baffles attached on the heated wall of rectangular duct on heat transfer and friction factor. An increase in heat transfer and friction loss over a smooth surface has been observed for duct having perforated baffles as a roughness element. Numerical results have been used to develop the Nusselt number and friction factor correlations as a function of flow and geometrical parameters for predicting performance of the system having investigated the type of roughness elements.

doi:10.14456/WJST.2014.33

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Author Biography

Narendra Singh THAKUR, Centre for Energy and Environment, National Institute of Technology, Hamirpur 177005

CEE, NIT Hamirpur-177005, India

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