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TECHNICAL PAPERS: Gas Turbines: Heat Transfer

Detailed Experimental Studies of Flow in Large Scale Brush Seal Model and a Comparison With CFD Predictions

[+] Author and Article Information
L. H. Chen, P. E. Wood, T. V. Jones

Department of Engineering Science, University of Oxford, Parks Road, Oxford, United Kingdom

J. W. Chew

Mechanical Science Group, Rolls-Royce plc. Moor Lane, Derby, United Kingdom

J. Eng. Gas Turbines Power 122(4), 672-679 (May 15, 2000) (8 pages) doi:10.1115/1.1287265 History: Received March 09, 1999; Revised May 15, 2000
Copyright © 2000 by ASME
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References

Figures

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Schematic of build clearance brush seal
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Large scale model: (a) Test section; (b) configuration of the interference seal; (c) configuration of the clearance seal.
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Flow characteristics for the clearance seals
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Ratio of seal flow to orifice flow versus pressure ratio (clearance seals)
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Flow characteristics for the interference seals
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Pressure distribution within the bristle pack (interference seal: Pu=2.11 bar;Pd=1.28 bar)
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Pressure distributions for the interference seal: (a) pressure distributions in the axial direction; (b) pressure distributions in the direction along the bristles.
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Pressure distribution within the bristle pack (clearance seal: Pu=2.03 bar;Pd=1.47 bar)
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Pressure distributions for the clearance seal: (a) pressure distributions in the axial direction; (b) pressure distributions in the direction along the bristles.
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Divided porous regions with varied resistance coefficients
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Pressure distributions with varied resistance coefficients: (a) pressure distributions in the axial direction; (b) pressure distributions in the direction along the bristles.

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