Kinetic theory analysis of thermal conductivity in granular material flows

Research output: Contribution to journalConference articlepeer-review

Abstract

The effective thermal conductivity is developed by employing the dense-gas kinetic theory. The free path used in the theory varies with the particle velocity. The analytical results can be used for the whole range of the product of Biot number and Fourier number provided that the Biot number is less than 0.1. For the very small Biot-Fourier numbers, the conductivities are found to increase with the particle diameters and the square root of granular temperatures. For the limit of very large Biot-Fourier numbers, the two effective-thermal conductivities are found to be linearly proportional to the granular temperature.

Original languageEnglish
Pages (from-to)269-274
Number of pages6
JournalAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
Volume361-1
StatePublished - 1998
EventProceedings of the 1998 ASME International Mechanical Engineering Congress and Exposition - Anaheim, CA, USA
Duration: 15 Nov 199820 Nov 1998

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