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Sand erosion modeling in generic compressor rig testing

Published online by Cambridge University Press:  03 August 2022

L. Y. Jiang*
Affiliation:
National Research Council Canada, Ottawa, Ontario K1A0R6, Canada
X. Wu
Affiliation:
National Research Council Canada, Ottawa, Ontario K1A0R6, Canada
Q. Yang
Affiliation:
National Research Council Canada, Ottawa, Ontario K1A0R6, Canada
*
Corresponding Author. Email: lei-yong.jiang@nrc-cnrc.gc.ca

Abstract

Based on erosion coupon tests, a sand erosion model for 17-4PH steel was developed. The developed erosion model was validated against the results of compressor erosion tests from a generic rig and from other researchers. A high-fidelity computational fluid dynamics (CFD) model of the test rig was built, a user-defined function was developed to implement the erosion model into the ANSYS CFD software, and the turbulent, two-phase flow-field in multiple reference frames was solved. The simulation results are consistent with the test results from the compressor rig and with experimental findings from other researchers. Specifically, the sand erosion blunts the leading edge, sharpens the trailing edge and increases pressure-surface roughness. The comparisons between the experimental observations and numerical results as well as a quantitative comparison with three other sand erosion models indicate that the developed sand erosion model is adequate for erosion prediction of engine components made of 17-4PH steel.

Information

Type
Research Article
Copyright
© The Author(s), 2022. Published by Cambridge University Press on behalf of Royal Aeronautical Society

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