Scattering of nonspherical particles rebounding from a smooth and a rough surface in a high-speed gas-particle flow

被引：11

作者：

Panfilov, S. V. ^{[1
]}

Tsirkunov, Yu. M. ^{[1
]}

机构：

[1] Ustinov Voenmekh Balt State Tech Univ, St Petersburg 190005, Russia

来源：

JOURNAL OF APPLIED MECHANICS AND TECHNICAL PHYSICS | 2008年 / 49卷 / 02期

基金：

俄罗斯基础研究基金会;

关键词：

impact interaction of particles with the wall; nonspherical particles; smooth and rough surfaces; scattering indicatrices;

D O I：

10.1007/s10808-008-0032-4

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Scattering indicatrices of nonspherical particles rebounding from a smooth and a rough surface are obtained by direct Monte Carlo simulations. Particles shaped as ellipsoids of revolution, rectangular prisms, and prisms with truncated vertices are considered. Surface roughness is defined as a two-dimensional profile whose scattering characteristics are close to those of real roughness induced by abrasive erosion of the surface in a high-speed gas-particle flow. Impact interaction of an individual particle with the surface is considered in a three-dimensional formulation. The scattering indicatrices of reflected particles are found to depend substantially on the particle shape in the case of rebound from a smooth surface and to be almost independent of the particle shape if the particles rebound from a rough surface.

引用

页码：222 / 230

页数：9

共 35 条

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