Numerical Investigation of Heat Transfer on the Surface of a Circular Cylinder in Cross-Flow

Gizem ŞENCAN, Yunus MARAL, Mustafa Kemal İŞMAN
2.032 1.033

Abstract


In the present study, numerical analysis of heat transfer from heated cylinder, located in
rectangular channel normal to the flow direction is studied. Finite volume based ANSYS-FLUENT 14 code
is used in the solution of governing equations. Three different turbulence models as Std. k-ε, RNG k-ε and
Realizable k-ε are used in computations for four different Reynolds numbers, Re= 4000, 8000, 16000, and
32000. It is found that numerical results obtained with Std. and RNG k-ε turbulence models are in good
agreement with experimental data for maximum value of local Nusselt number on the cylinder. As expected
that local Nusselt numbers increase with increasing Reynolds number for almost all points on cylinder.


Keywords


CFD; Cross-flow cylinder; Turbulence modeling

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DOI: http://dx.doi.org/10.17482/uujfe.84326

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