Destruction of preferential accumulation by Lorentz force interactions


Karnik, Aditya and Shrimpton, John (2008) Destruction of preferential accumulation by Lorentz force interactions At 22nd European Conference on Liquid Atomization and Spray Systems (ILASS 2008). 08 - 10 Sep 2008.

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Description/Abstract

The effect of electric charge, residing on particles, upon the phenomenon of preferential accumulation is investigated using direct numerical simulations of forced isotropic turbulence. It is well known that particles with a certain range of Stokes numbers preferentially accumulate, or de-mix, due to action of turbulent motion. Here it is shown that charged particles interact with each other through an electric field generated by non-uniformity of particle distribution. This interaction mitigates preferential accumulation at a bulk charge density level that is practically relevant and commensurate with the first few centimetres of a spray plume, the region where non-homogeneous particle concentration typically forms. It is suggested that use of electric charge could be useful in improving mixture preparation for spray combustion applications.

Item Type: Conference or Workshop Item (Paper)
Venue - Dates: 22nd European Conference on Liquid Atomization and Spray Systems (ILASS 2008), 2008-09-08 - 2008-09-10
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ePrint ID: 64145
Date :
Date Event
10 September 2008Published
Date Deposited: 23 Dec 2008
Last Modified: 16 Apr 2017 17:21
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/64145

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