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TECHNICAL PAPERS

Modeling Shrouded Stator Cavity Flows in Axial-Flow Compressors

[+] Author and Article Information
S. R. Wellborn, I. Tolchinsky

Rolls-Royce Allison, Indianapolis, IN 46206

T. H. Okiishi

Iowa State University, Ames, IA 50011

J. Turbomach 122(1), 55-61 (Feb 01, 1999) (7 pages) doi:10.1115/1.555427 History: Received February 01, 1999
Copyright © 2000 by ASME
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References

Figures

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Variation in stage matching between builds 1 and 2 of the compressor
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Schematic of shrouded stator cavity flow model
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Representative straight-through seal cavity
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Schematic of seal-teeth geometric parameters
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Predicted and measured differences in pressure rise for stages 7–12. The filled circles denote the difference in pressure rise between build 2 and build 1. The open circles represent the difference in pressure rise between the double and nominal tip clearance simulation.
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Predicted and measured differences in pressure rise for stages 7–12. The filled circles denote the difference between build 2 and build 1. The open circles represent the difference between the double and nominal seal clearance simulation, while the open triangles represent the difference between the triple and nominal seal clearance simulation.
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Normalized distributions of rotor 11 discharge total pressure and total temperature
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Measured levels of seal-tooth clearance from the tear-down of build 2
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Measured and predicted hub total temperature data given as a difference from design intent

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