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International Heat Transfer Conference 12

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

Effects of blockage on flow and heat transfer over a tube in cross flow

Nandanavanam Jalaiah
Heat Transfer and Thermal Power Laboratory Department of Mechanical Engineering Indian Institute of Technology Madras Chennai - 600036, India

Vijay R. Raghavan
Heat Transfer and Thermal Power Laboratory Department of Mechanical Engineering Indian Institute of Technology Madras Chennai - 600036, India; College University Technology Tun Hussein Onn, Malaysia

DOI: 10.1615/IHTC12.1460
6 pages

Abstrakt

A numerical investigation is carried out to study the effect of confining walls on the flow and heat transfer characteristics of flow past a circular tube for the range of 200 ≤ Re ≤ 105 and 1/20 ≤ BR ≤ 1/3. The results are presented in the form of local pressure coefficient, drag coefficient, Strouhal number as well as averaged Nusselt number. Vorticity contours are also presented for better understanding of the flow structure and to support various conclusions. It is observed that drag coefficient and Strouhal number increase with blockage ratio.

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