Numerical Investigation on Thermal Characteristics of Air in a Square Duct Using Ribs as Vortex Generator
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2016, Vol 4, Issue 10
Abstract
The numerical investigation has been carried out on one wall of square duct to study the effect of influence of ribs upon thermal characteristics and fluid flow of air in a square duct. Analysis is done by using CFD tool, Ansys fluent and is carried out for different Aspect Ratio of 1.5, 2 and 3 for the pitch of 120 mm and 240 mm. Primary objective of the analysis is to analyze the effect of varied aspect ratios of the rectangular ribs with varied pitch on the heat transfer rate and to estimate the pressure ratios in the square channel. From the present analysis it is concluded that for model with higher aspect ratio and longer pitch results in lower pressure drop and better heat transfer enhancement for the given inlet flow conditions. It is also concluded that having lower pitch in the channel results in lower heat transfer rate.
Authors and Affiliations
Sharanu Kumar Mavor, Anandkumar S Malipatil
Keywords
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