CFD Analysis of the Twin Inclined Injection Flows in an Axi-Symmetric Duct along with Main Turbulent Flow

Abstract:

A numerical simulation has been carried out to study the effects of twin inclined side mass injection with cross flow through a circular duct using modified model, considering streamline curvature effects by modifying the model constants. 1/7^th turbulent velocity profile has been taken at the inlet. The effects of side mass injection on the flow pattern of the main bulk fluid and the mixing of two mutually cross turbulent flows have been studied in details. The formation of recirculatory flow has been visualized by varying the primary as well as secondary injection angle. With the variation of the injection angle axial velocity profiles at various locations and the centerline velocity variation along the duct have been studied. It has been observed that the impact of primary injection angle variation on the recirculation size is more than the secondary injection angle variation.

• Periodical: Applied Mechanics and Materials (Volumes 592-594)
• Pages: 1897-1902
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.592-594.1897
• Online since: July 2014
• Authors: Debajit Saha*, Snehamoy Majumder
• Keywords: 1/7^th Turbulent Velocity Profile, Flow Visualization, k - E Model, Streamline Curvature, Turbulent Flow, Twin Inclined Injection

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