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Drag force and frictional resistances in vertically vibrated dense granular media

机译:垂直振动的致密颗粒介质中的阻力和摩擦阻力

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摘要

The objective of this thesis is to shed light on the vertical vibration of granular materials for potential interest in the power generation industry. The main focus is investigating the drag force and frictional resistance that influence the movement of a granular material (in the form of glass beads) contained in a vessel, which is subjected to sinusoidal oscillation.The thesis is divided into three parts: theoretical analysis, experiments and computer simulations. The theoretical part of this study presents the underlying physical phenomena of the vibration of granular materials. Experiments are designed to determine fundamental parameters that contribute to the behavior of vibrating granular media. Numerical simulations include the use of three different software applications: FLUENT, LS-DYNA and ANSYS Workbench. The goal of these simulations is to test theoretical and semiempirical models for granular materials in order to validate their compatibility with the experimental findings, to assist in predicting their behavior, and to estimate quantities that are hard to measure in laboratory.
机译:本文的目的是阐明粒状材料的垂直振动,以引起发电行业的潜在兴趣。主要研究的是阻力和摩擦阻力,这些阻力和摩擦阻力会影响正弦振荡的容器中包含的粒状材料(以玻璃珠的形式)的运动。论文分为三个部分:理论分析,实验和计算机模拟。本研究的理论部分介绍了颗粒状材料振动的潜在物理现象。实验旨在确定有助于振动粒状介质行为的基本参数。数值模拟包括使用三种不同的软件应用程序:FLUENT,LS-DYNA和ANSYS Workbench。这些模拟的目的是测试粒状材料的理论模型和半经验模型,以验证其与实验结果的相容性,协助预测其行为并估算在实验室中难以测量的数量。

著录项

  • 作者

    Halabia Ali;

  • 作者单位
  • 年度 2006
  • 总页数
  • 原文格式 PDF
  • 正文语种 en
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