Modeling of the Pressure Drop in the Packing of Complex Geometry
Modeling of the Pressure Drop in the Packing of Complex Geometry
复制标题
复杂几何形状填充中压降的建模
DOI：
10.1021/ie010541c
复制
发表时间：
2002
影响因子：
4.2
通讯作者：
J. Tobiś
中科院分区：
文献类型：
--
作者：
J. Tobiś
如今，复杂几何形状的高度专业化填料的设计成为一项具有挑战性的任务，并且它们的流体动力学特性被认为是最重要的。所需知识的一部分涉及填料几何形状对湍流单一流体流引起的压降的影响。为了检验不同理论方法的优点，在复杂几何模型系统中对几种先进和简化的湍流建模方法进行了比较和实验验证。特别是，标准 k−e 湍流模型和表面流动模型的数值预测与结构宏观相关性并列。球体、带状体、棱柱体和管体的各种空间组合的流体动力阻力作为参考数据。尝试建立可以可靠预测流经复杂几何形状的新型填充结构的流体压降的条件。除了表明...
Nowadays, the design of highly specialized packings of complex geometry becomes a challenging task, and their hydrodynamic properties are perceived to be of primary importance. A part of the required knowledge concerns an influence of the packing geometry on the pressure drop caused by a turbulent single fluid flow. To check merits of different theoretical approaches, several advanced and simplified methods of turbulent flow modeling were compared and verified experimentally in the model systems of complex geometry. In particular, the numerical predictions of the standard k−e turbulence model and the superficial flow model were juxtaposed against the structural macrocorrelations. The hydrodynamic resistance of various spatial compositions of spheres, bands, prisms, and tubes served as the reference data. An attempt was done to establish the conditions under which the pressure drop of the fluid flowing through a novel packing structure of complex geometry might be reliably predicted. In addition to indicat...