EROSION PREDICTION NEAR A STAGNATION POINT RESULTING FROM AERODYNAMICALLY ENTRAINED SOLID PARTICLES

被引：36

作者：

LAITONE, JA

机构：

[1] Lawrence Berkeley Laboratory, University of California, Berkeley, CA

来源：

JOURNAL OF AIRCRAFT | 1979年 / 16卷 / 12期

关键词：

D O I：

10.2514/3.58608

中图分类号：

V [航空、航天];

学科分类号：

08 [工学]; 0825 [航空宇航科学与技术];

摘要：

An analytic solution is obtained for the inviscid flow of a two-phase gas-solid mixture near a stagnation point. For this type of flow the momentum equilibration parameter, which is a measure of a particle’s momentum, is found to be the unique determinant of particle trajectories. It is shown that values of this parameter less than one-fourth identify particles which never impact with a boundary. The closed-form solution is applied to an erosion model to predict the relative erosion distribution along the boundary. The erosion rate is found to be proportional to the particle velocity raised to the exponent of 4.0. © 1979 American Institute of Aeronautics and Astronautics, Inc., All rights reserved.

引用

页码：809 / 814

页数：6

共 5 条

[1]

Taylor G.I., Notes on Possible Equipment and Technique for Experiments on Icing on Aircraft, Aeronautical Research Committee Reports and Memoranda, 2024, pp. 1-7, (1940)

[2]

Drew D.A., Two-Phase Flows: Constitutive Equations for Lift and Brownian Motion and Some Basic Flows, Archive for Rational Mechanics and Analysis, 62, 2, pp. 149-163, (1976)

[3]

Finnie I., Some Observations on the Erosion of Ductile Metals, Wear, 19, pp. 81-90, (1972)

[4]

Sheldon G.L., Kanhere A., An Investigation of Impingement Erosion Using Single Particles, Wear, 21, pp. 195-209, (1972)

[5]

Grant G., Tabakoff W., Erosion Prediction in Turbomachinery Resulting from Environmental Solid Particles, Journal of Aircraft, 12, pp. 471-478, (1975)

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