Hydrodynamic Study of Turbulent Fluid Flow in an Axi- Symmetric Duct with Crescent

Abstract

In this article, the fluid flow analysis in an axi-symmetric duct with and without crescent hasbeen studied numerically. Fluent 6.3 based on finite volume method have been used to analyzethe flow problem. The parameters varied are non-dimensional crescent length1 ( / ) C L  S R of0.9 to 0.5 and Reynolds number of 7.5X104 to 3.5X105 respectively. An experiment has beencarried out in a straight sudden expansion pipe without crescent for same Reynolds numbers.The numerically achieved results have been compared with the experimental results thusobtained for different Reynolds numbers for the case of without crescent only. The resultshave been found to match reasonably. The main objective of this study is to find out thefriction factor in an axi-symmetric sudden expansion duct with crescent. The results show thatthe friction factor decreases with increase in Reynolds number and crescent lengthrespectively.Keywords: Axi-symmetric sudden expansion, crescent, finite volume method, experiment, friction factorCite this Article:Pritam Das, Snehamoy Majumder, Debajit Saha et al. Hydrodynamic Study of Turbulent Fluid Flow in an Axi-Symmetric Duct with Crescent. Journal of Experimental & Applied Mechanics. 2015; 6(2): 57–69p.