Analysis of low Reynolds number flow around a heated circular cylinder

Baranyi, László and Szabó, Szilárd and Bolló, Betti and Bordás, Róbert (2009) Analysis of low Reynolds number flow around a heated circular cylinder. JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 23 (7). pp. 1829-1834. ISSN 1738-494X

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Abstract

The objective of this study is to investigate the forced convection from and the flow around a heated cylinder. Experimental and computational results are presented for laminar flow around a heated circular cylinder with a diameter of 10 mm. The experiments were carried out using Particle Image Velocimetry (PIV) in a wind tunnel, and numerical simulations using an in-house code and a commercial software package, FLUENT. This paper pre-sents comparisons for vorticity and temperature contours in the wake of the cylinder. Experimental and computa-tional results are compared with those available in the literature for heated and unheated cylinders. An equation is suggested for a temperature-dependent coefficient defining a reference temperature to be used in place of the con-stant used in other studies. An attempt is also made to correct differences between average cylinder surface tem-perature and measured interior temperature of the cylinder.

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