This article is cited in 13 papers

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

S. V. Panfilov, Yu. M. Tsirkunov

Ustinov Voenmekh Baltic State Technical University, St. Petersburg, 190005

Abstract: 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.

Keywords: impact interaction of particles with the wall, nonspherical particles, smooth and rough surfaces, scattering indicatrices.

UDC: 532.529.5

Received: 05.04.2007

 English version: Journal of Applied Mechanics and Technical Physics, 2008, 49:2, 222–230

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