Numerical Study of Mixed Convection around a Heated Circular Cylinder

Vivien Djanali; Ahmad Nurdian Syah; Syaiful Rizal

doi:10.4028/www.scientific.net/AMM.836.85

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 836Numerical Study of Mixed Convection around a...

Numerical Study of Mixed Convection around a Heated Circular Cylinder

Abstract:

Wake and heat transfer characteristics around a heated circular cylinder were studied numerically in this paper. Heat transfer from a heated cylinder to the freestream flow was in mixed convection regime, with the free convection-bouyancy driven flow in opposite direction to the forced convection-main flow. Numerical simulations were performed for three Reynolds numbers of 100, 135 and 200, with the Richardson (Ri = Gr/Re²) numbers varied from 0 to 1. Results showed that buoyancy force significantly altered wake formation behind the heated cylinder, further resulted in increasing drag and decreasing Nusselt number.

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Periodical:

Applied Mechanics and Materials (Volume 836)

Pages:

85-89

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.836.85

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Online since:

June 2016

Authors:

Vivien Djanali*, Ahmad Nurdian Syah, Syaiful Rizal

Keywords:

Counter-Flow, Heated Cylinder, Mixed Convection, Numerical Simulation

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