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Cfd Simulation Of Swirling Effect In S-Shaped Diffusing Duct By Swirl Angle 200

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Author(s): Ramazan

Journal: International Journal of Engineering Research and Applications
ISSN 2248-9622

Volume: 3;
Issue: 4;
Start page: 51;
Date: 2013;
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Keywords: Curved diffusers | intake ducts | swirling flow | secondary flows | pressure recovery

ABSTRACT
The present study involves the CFD analysis for the prediction of swirl effect on the characteristics of a steady, incompressible flow through an S-shaped diffusing duct. The curved diffuser considered in the present case has Sshaped diffusing duct having an area ratio of 1.9, length of 300 mm and turning angle of 22.5°/22.5°. The static pressure, total pressure, velocity and turbulence intensity were accounted. The improvement is observed for both, clockwise and anti-clockwise swirl, the improvement being higher for clockwise swirl. Flow uniformity at the exit is more uniform for clockwise swirl at the inlet.
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