Commun. Comput. Phys., 15 (2014), pp. 677-691.


Investigating Plasma Jets Behavior using Axisymmetric Lattice Boltzmann Model under Temperature Dependent Viscosity

Ridha Djebali 1*

1 ISLAIB - Beja 9000, University of Jendouba, Tunisia.

Received 16 March 2013; Accepted (in revised version) 29 August 2013
Available online 1 November 2013
doi:10.4208/cicp.160313.290813a

Abstract

This study aims to investigate turbulent plasma flow using the lattice Boltzmann (LB) method. A double population model D2Q9-D2Q4 is employed to calculate the plasma velocity and temperature fields. Along with the calculation process a conversion procedure is made between the LB and the physical unit systems, so that thermo-physical properties variation is fully accounted for and the convergence is checked in physical space. The configuration domain and the boundary condition treatment are selected based on the most cited studies in order to illustrate a realistic situation. The jet morphology analysis gives credible results by comparison with commonly published works. It was demonstrated also that accounting for the substrate as wall boundary condition modify greatly the flow and temperature structures with may affect absolutely the particles behavior during its in-flight in the hot gas.

AMS subject classifications: 35Q20, 35Q30, 76F65, 80M25, 81T80, 82D10, 82C80, 82C70

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Key words: LB method, axisymmetric model, temperature dependent viscosity, turbulence, plasma jets.

*Corresponding author.
Email: ridha.djebali@ipein.rnu.tn (R. Djebali)
 

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