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Study of Random Particle Interactions for Analysis of Diffusion Lengths in Turbulent Combustion Modelling

M. M., Noor and T. F., Yusaf (2011) Study of Random Particle Interactions for Analysis of Diffusion Lengths in Turbulent Combustion Modelling. In: Australian Combustion Symposium, 29 Nov- 1 Dec 2011 , University of Newcastle. .

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Abstract

Turbulent combustion is commonly modelled using probability density function (PDF) methods; to close these methods, micro-mixing models are required: these are most commonly based on stochastic particle interactions. While it is standard practice for the turbulent diffusion coefficient to be used to specify the amount of mixing, few models account for the corresponding diffusion length scale that defines interacting particle separation. This study investigates ensemble averages of the minimum, mean and maximum inter-particle distances for random realisations as a precursor to comparing with the diffusion length in real simulations. It was found that the ensemble of results for each type of inter-particle distance (minimum, mean or maximum) had a normal distribution. For 1 to 1000 dimensions, the minimum inter-particle distances for 100 particles were 0.0051 to 12.3406 and the average distances were 0.3297 to 12.7776.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Proceeding Muhamad Mat Noor (M. M. Noor)
Uncontrolled Keywords: Particles, Diffusion Length, Turbulent Combustion
Subjects: T Technology > TJ Mechanical engineering and machinery
Faculty/Division: Faculty of Mechanical Engineering
Depositing User: Siti Aishah Ghani
Date Deposited: 02 Jan 2012 23:51
Last Modified: 03 Mar 2015 07:54
URI: http://umpir.ump.edu.my/id/eprint/2110
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