CFD Optimization of Cooling Air Offtake Passages Within Rotor Cavities

[+] Author and Article Information
Colin Young, Guy D. Snowsill

Rolls-Royce plc, Derby, DE24 8BJ England

J. Turbomach 125(2), 380-386 (Apr 23, 2003) (7 pages) doi:10.1115/1.1556405 History: Received January 23, 2002; Online April 23, 2003
Copyright © 2003 by ASME
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Comparison of cavity pressure difference predictions
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Typical slotted offtake cross section
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2A tangential velocity contours
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2A radial velocity contours
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4A tangential velocity contours
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4A radial velocity contours
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Comparison of offtake swirl uptake
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Schematic diagram of a typical IP compressor offtake flow path
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Modeled region of the IP5 offtake
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Basic calculational mesh
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Typical moment coefficient history
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Variation of offtake swirl coefficient
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Static pressure contour plot
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Velocity magnitude contour plot
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Tangential velocity contours
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Radial velocity contours




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