CFD Investigation on Thermal Characteristics of Air in a Square Duct using Perforated RIBS
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2016, Vol 4, Issue 10
Abstract
In the present work thermal characteristics of air in a square duct with perforated ribs having Aspect ratio (A.R) 2, 3 and 5 were investigated. Analysis is carried out by using a CFD tool. The flow and thermal characteristics of air in a square duct with different geometrical configurations of perforated ribs are studied. Primary objective is to analyze the effect of varied aspect ratios of the perforated ribs with varied pitch on the thermal characteristics and to estimate the pressure ratios in the square duct. This work is repeated for different configurations of perforated ribs and the results are reported for Aspect ratio (A.R) of 2,3,5 and pitch of 120mm, 180mm, 48mm and 72mm with holes of 3,4,8 in numbers each of 2mm diameter. From the present analysis it is observed that velocities are maximum in the domain for the aspect ratio of 2 due to obstruction in the channel. It is observed that for model with higher aspect ratio and longer pitch results in lower pressure drop and better heat transfer rate for the given inlet flow conditions.
Authors and Affiliations
Veeresh Chavan, Anandkumar S Malipatil
Keywords
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