In the present study, fluid flow around and heat transfer from a rotating circular cylinder confined in a channel are studied numerically using overset grid method.The governing equations consist of continuity, momentum and energy equations are solved for laminar flow . Numerical simulations are performed for Reynolds numbers varying from 100 to 500, non dimensional rotational velocities of 0, 1 and 2, blockage ratios of 0.1, 0.3 and 0.5 and prandtl numbers of 0.7 and 7. The results show that the transition from steady flow to unsteady flow is delayed as blockage ratio increases. Drag coefficient and heat transfer are reduced by rotation of the cylinder, In contrast as blockage ratio increases, Drag coefficient and heat transfer increases. In unsteady flow past a circular cylinder confined in a channel, the pattern of shed vortices is different from that observed in free stream flow past a circular cylinder and the vortices behind the cylinder moves criss-cross.
jafari, R., & Saghafian, M. (2014). Numerical simulation of laminar flow and heat transfer from rotating circular cylinder confined in a channel. Journal of Solid and Fluid Mechanics, 4(3), 65-81. doi: 10.22044/jsfm.2014.341
MLA
reza jafari; Mohsen Saghafian. "Numerical simulation of laminar flow and heat transfer from rotating circular cylinder confined in a channel", Journal of Solid and Fluid Mechanics, 4, 3, 2014, 65-81. doi: 10.22044/jsfm.2014.341
HARVARD
jafari, R., Saghafian, M. (2014). 'Numerical simulation of laminar flow and heat transfer from rotating circular cylinder confined in a channel', Journal of Solid and Fluid Mechanics, 4(3), pp. 65-81. doi: 10.22044/jsfm.2014.341
VANCOUVER
jafari, R., Saghafian, M. Numerical simulation of laminar flow and heat transfer from rotating circular cylinder confined in a channel. Journal of Solid and Fluid Mechanics, 2014; 4(3): 65-81. doi: 10.22044/jsfm.2014.341
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