Packing-of-spheres models

A demonstration of this approach has been reported to evaluate the ability of a lattice-Boltzmann code to predict both spatially resolved flow fields and MR propagators characterizing flow through random packings of spheres (model fixed beds) for flows defined by Peclet (Pe) and Reynolds numbers in the range 182 < Pc <3 50 and 0.4 < Re <0.77 (85). Excellent agreement was found between the numerical predictions and experimental measurements. Current interest in this field addresses the validation and development of numerical codes predicting flows at Reynolds numbers more appropriate to real catalytic reactors. 

Applications of the packing-of-spheres model Ionic lattices... 

The application of the packing-of-spheres model to the crystalline structures of H2 and F2 is only valid because they contain freely rotating molecules. Other diatomics such as the heavier halogens do not behave in this manner (see Section 16.4). 

Chapter 5 The packing-of-spheres model applied to the structures of elements 135... 

In Section 6.2, we considered some of the ways in which hard spheres may pack together to give ordered arrays. Although the idea of hard, spherical atoms is at odds with modem quantum theory, the packing-of-spheres model is extremely useful for depicting many solid state stmetures. The model is applicable to the group 18 elements because... 

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