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NUMERICAL INVESTIGATION OF FLUID FLOW AND HEAT TRANSFER CHARACTERISTIC AROUND HEATED CYLINDER INSIDE CONVERGEN- DIVERGENT CHANNEL | ||
| AL-TAQANI | ||
| Article 1, Volume 24, Issue 2, 2011, Pages 178-188 | ||
| Author | ||
| Ahmed H. Yousif | ||
| Abstract | ||
| Two-dimensions flow over single circular cylinder in inside convergent-divergent channel are investigated. Considerations is given to the effect of Reynolds number, (Re), peak of convergent-divergent channel, (a), and the length of base of peak, (b), on heat transfer and flow phenomena. A finite volume procedure on non-orthogonal collocated grid on SIMPLE algorithm was used to solve the conservation equations (mass, momentum and energy) with constant heat flux under laminar fully developed flow conditions. Comparisons with the cylinder in straight channel, in the same flow rate and heat transfer conditions, have been performed. Heat transfer from cylinder in convergent-divergent channel is found to be always larger than the value characteristic of a cylinder in straight channel, also pressure drop performance increases. The results show that the maximum of heat transfer be at (a/H= 0.53, b/H= 0.46). | ||
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