Simulation of Rectangular Duct for Performance Analysis of Trapezoidal Transverse Rib of Different Top Faced Tapered Angle
Atul Sharma1, R.K. Agarwal2
1Atul Sharma, Assistant. Professor, Department of Mechanical Engineering, JP Institute of Engineering and Technology, Meerut (Utter Pradesh), India.
2Dr. Rajeev Kumar Agarwal, Professor, Department of Mechanical Engineering, Meerut Institute of Engineering and Technology, Meerut (Utter Pradesh), India.
Manuscript received on 15 December 2015 | Revised Manuscript received on 25 December 2015 | Manuscript Published on 30 December 2015 | PP: 130-141 | Volume-5 Issue-2, December 2015 | Retrieval Number: B4381125215/15©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Heat transfer enhancement using artificial roughness attached to the surface of duct is a effective technique in many application. This study presents the comparative change in flow characteristics between trapezoidal shaped of different top face tapered angle artificial roughness in a duct by using CFD. A commercial finite volume package ANSYS FLUENT 12.1 is used to visualize and analyze the nature of the heat transfer and flow phenomenon. The simulations were performed with transversely trapezoidal ribs placed periodically with downstream top face tapered angle of 00 , 50 , 100 , 150 and 200 . Different profile of transverse ribs are compared at fixed p/e, p/d and Reynolds Number(45000). Different profile of the transverse ribs are compared on the basis of pumping power requirement, hot spot region, Nusselt number ratio, friction factor ratio. It is found that Nusselt number ratio is increased on increasing the top face tapered angle from 100 to 150 . Friction factor ratio is decreased on increasing the top face tapered angle. Finally, It is investigated that Performance evaluation parameter is maximum for trapezoidal rib with top face tapered angle of 200 .
Keywords: Artificial Roughness, CFD, Heat Transfer Enhancement, Rectangular Duct
Scope of the Article: Heat Transfer