Please use this identifier to cite or link to this item: https://apo.ansto.gov.au/dspace/handle/10238/423
Title: Some geometrical properties of packing of equal spheres in cylindrical vessels, Part V - adaption of model to packings in cylindrical vessels
Authors: Tingate, GA
Keywords: Cylindrical configuration
Pebble bed reactors
Reactor cores
Spheres
Reactor fueling
Cylinders
Issue Date: May-1973
Publisher: Australian Atomic Energy Commission
Citation: Tingate, G. A. (1973). Some geometrical properties of packing of equal spheres in cylindrical vessels, Part V - adaption of model to packings in cylindrical vessels. (AAEC/E234). Lucas Heights, NSW: Australian Atomic Energy Commission.
Abstract: Following the exploratory study reported in Part I, detailed experimental determinations have been made of the properties of a range of unbiased random packings with cylinder-to-sphere diameter ratios of 11.4 and 8.71. Properties at the dense end of the range depend on the diameter ratio. Properties at the loose end of the range are independent of the diameter ratio, and agree closely with those computed from the model developed in Part IV for the semi-infinite case. The model is adapted to the cylindrical case by means of quadratic equations whose coefficients depend on the cylinder-to-sphere diameter ratio. Although the adapted model is based on experiments with comparatively small diameter ratios, it is shown to hold for larger ratios, without the need to call further on experimentally determined properties. It is shown that commonly used preparation methods, such as placing or pouring spheres on the top surface, can result in packings with radial bias. Two methods of preparing unbiased random packings are described.
Gov't Doc #: 233
URI: http://apo.ansto.gov.au/dspace/handle/10238/423
ISBN: 0642995699
Appears in Collections:Scientific and Technical Reports

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