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Experimental and computational analysis of random tetrahedral packings with applications.

机译:随机四面体填料的实验和计算分析及其应用。

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摘要

Random packings are prevalent in chemical engineering applications and they can serve as prototype models of particulate materials. In this research, comprehensive studies on tetrahedral packings were carried out experimentally.;Experiment was conducted on regular tetrahedral dice. MRI imaging was used to image the tetrahedral packs, an algorithm was developed which allowed us to retrieve each of the particle center positions as well as the 3D orientation from the digital data. To our best knowledge this is the first time that such an in-depth analysis was performed on non spherical objects. This numerical approach makes it possible to study detailed packing structure, packing density, the onset of ordering, and wall effects.;Important applications for tetrahedral packings include multiphase flow in catalytic beds, heat transfer, bulk storage and transportation, and manufacturing of fibrous composites.
机译:无规填料在化学工程应用中很普遍,它们可以用作颗粒材料的原型模型。本研究通过实验对四面体填料进行了综合研究。对常规四面体骰子进行了实验。 MRI成像用于对四面体填充进行成像,开发了一种算法,该算法使我们能够从数字数据中检索每个粒子中心位置以及3D方向。据我们所知,这是第一次对非球形物体进行如此深入的分析。这种数值方法使人们有可能研究详细的填料结构,填料密度,开始的有序性和壁效应。四面体填料的重要应用包括催化床中的多相流,传热,大容量存储和运输以及纤维复合材料的制造。

著录项

  • 作者

    Jaoshvili, Alexander.;

  • 作者单位

    New York University.;

  • 授予单位 New York University.;
  • 学科 Physics Condensed Matter.
  • 学位 Ph.D.
  • 年度 2010
  • 页码 103 p.
  • 总页数 103
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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