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EFFECT OF CORNER CUTOFFS ON FLOW AND HEAT TRANSFER AROUND SQUARE CYLINDER | ||
| AL-TAQANI | ||
| Article 1, Volume 26, Issue 5, 2013, Pages 0-0 | ||
| Author | ||
| Ahmed HashimYousif | ||
| Abstract | ||
| The structures of wake behind a square cylinder with cutoff corner in a laminar channel flow is studied numerically. The pressure coefficient and Nusselt number were studied for Reynolds number ranging from (500 to 1500). The governing equations are solved by using finite volume method (FVM) adapted to the staggered grid. The SIMPLE algorithm is used for the velocity-pressure coupling. Effect of direction of corner cutting ( in front of side, rear side and two sides ), dimensions of cutting and Reynolds number on pressure drop and heat transfer were studied. The results show that the pressure drop for square cylinder with corner cutoffs for in front of and two sides decreased when compared with that for square and rear side cases cylinders by (8% - 17%). Also heat transfer increased around square cylinder with cutoffs corner for in front of and two sides when compared with square and rear side cases cylinders by (10% - 20% ), also the wake area of square cylinder with cutoff corner decreases comparing with that of square cylinder. | ||
| Keywords | ||
| square cylinder; cutoffs corner; heat transfer; flow characteristics | ||
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