Comparison of numerical simulation of inert particle transport in an electrostatic discharge with experimental results

Document Type

Conference Proceeding

Publication Date

1-1-2020

Abstract

Particle-laden electrostatic discharges are widely used in research as well as in industrial applications. The mechanism of particle lifting in these highly unsteady flows are not well understood. Modifications are made to the FLASH research code to simulate this multiphase system using the Lagrangian-Eulerian (LE) approach. Various Lagrangian submodels are implemented in the code to study the particle phase evolution in the system. Results generated from the newly developed code are compared to the experiments of the dispersion of glass beads in an electrostatic discharge of energy 2 J performed at the New Jersey Institute of Technology (NJIT). The simulation results are qualitatively in good agreement with the experiments. Furthermore, the prominent mechanism of particle lifting was identified to be the Saffman lifting force generated on the particles due to velocity gradients in the gas flow field. Results suggest that the newly developed code is flexible in modeling particle transportation on larger length scales such as flow generated by “fireball” plasmas.

Identifier

85092347528 (Scopus)

ISBN

[9781624105951]

Publication Title

AIAA Scitech 2020 Forum

External Full Text Location

https://doi.org/10.2514/6.2020-1798

First Page

1

Last Page

16

Volume

1 PartF

Grant

HDTRA 11710044

Fund Ref

Defense Threat Reduction Agency

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