An experimental study of fly ash particle oblique impact with stainless surfaces

被引：24

作者：

Xie, Jun ^{[1
]}

Dong, Ming ^{[1
]}

Li, Sufen ^{[1
]}

Mei, Yaokui ^{[1
]}

Shang, Yan ^{[1
]}

机构：

[1] Dalian Univ Technol, Minist Educ, Sch Energy & Power Engn, Key Lab Ocean Energy Utilizat & Energy Conservat, 2 Linggong Rd, Dalian 116024, Liaoning, Peoples R China

来源：

JOURNAL OF AEROSOL SCIENCE | 2018年 / 123卷

基金：

中国国家自然科学基金;

关键词：

Oblique impact; Restitution coefficient; Fly ash; Dynamic friction coefficient; PLANAR SURFACES; SPHERES; BEHAVIOR; CONTACT; MODEL; MICROSPHERES; COEFFICIENT; RESTITUTION; COLLISIONS; CORROSION;

D O I：

10.1016/j.jaerosci.2018.06.001

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The oblique impact of fly ash onto stainless surfaces at room temperature is experimentally investigated. The effects of both incident velocity and incident angle on the rebound characteristics are reported. Based on the developed classical rigid body theory, the critical incident angle between gross sliding and no-sliding is 60 degrees. Then the coefficient of dynamic friction between fly ash and stainless surface in present experiments is determined to be 0.6. Based on this parameter, the fitted expressions of tangential restitution coefficient, dimensionless tangential rebound velocity at the contact patch, and the dimensionless rebound angles are developed. Finally, the rebound parameters at different normal restitution coefficient are predicted.

引用

页码：27 / 38

页数：12

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