文章基本信息

标题：Comparison of Constitutive Relationships for Dilute Granular Flow in a Vibrofluidized Cell
本地全文：下载
作者：Nadeem Ahmed Sheikh
期刊名称：Advances in Condensed Matter Physics
印刷版ISSN：1687-8108
电子版ISSN：1687-8124
出版年度：2012
卷号：2012
DOI：10.1155/2012/906598
出版社：Hindawi Publishing Corporation
摘要：We present comparison of two closure models for dissipative flow of granular gas. Initial validation of the models is achieved using MD simulations for a vibrated cell with elastic side walls. With the dissipation at the side walls, convective rolling in the cell is observed. We show that dense inelastic granular gas model exhibits deviations from near elastic model even at low dissipation and dilute conditions. The flow physics shows that the strength of convective roll can be related with the differential dissipations on the side walls. The discrepancy between the two models is significant as we reevaluate the scope of near elastic model in the presence of dissipative boundary conditions.