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TECHNICAL PAPERS

Application of Boundary Layer Fences and Vortex Generators in Improving Performance of S-Duct Diffusers

[+] Author and Article Information
R. K. Sullerey

Department of Aerospace Engineering, Indian Institute of Technology, Kanpur-208 016, Indiae-mail: suller@iitk.ac.in

Sourabh Mishra, A. M. Pradeep

Department of Aerospace Engineering, Indian Institute of Technology, Kanpur, India

J. Fluids Eng 124(1), 136-142 (Aug 24, 2001) (7 pages) doi:10.1115/1.1436096 History: Received November 17, 2000; Revised August 24, 2001
Copyright © 2002 by ASME
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References

Figures

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Layout of S-duct diffuser 1 and fence configurations
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Diffuser 2 geometry with wishbone and tapered-fin vortex generators
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Cp distribution of diffuser 1 for different fence configurations
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Transverse velocity distribution at the diffuser 1 exit. (a) Without fences, (b) with fences (Configuration E).
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Inner and outer wall Cp distribution with angle of measurement plane for diffuser 2. (a) With boundary layer fences, (b) with tapered-fin vortex generators (VG).
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Comparison of centerline Cp distribution for the two diffusers
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Total pressure loss coefficient distribution at the diffuser 2 exit. (a) Bare duct, (b) with tapered-fin vortex generators.
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Variation of skin fraction coefficient along the sidewalls. (a) Diffuser 1, (b) Diffuser 2.

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