Dependence of the electrohydrodynamic flows structure in very non-uniform electric field on the charge formation mechanism

Author

Stishkov, Yury ; Chirkov, Vladimir

Author_Institution

Phys. Dept., St. Petersburg State Univ., St. Petersburg, Russia

fYear

2011

fDate

26-30 June 2011

Firstpage

1

Lastpage

4

Abstract

A comparison of the steady-state electrohydrodynamic (EHD) flows structure in the needle-plane electrode system is carried out on the basis of the computer simulation results for injection and dissociation models of charge formation. The numerical computations of the EHD equations are performed with the software COMSOL Multiphysics 3.5 based on the finite element method. Part of the data obtained in the simulation is compared with the experimental ones to confirm the correctness of the proposed simulation method. Characteristic features of the flow structure are revealed for each mechanism of charge formation and some recommendations on the liquid choice for applied EHD device based on the discovered structure are given.

Keywords

electrohydrodynamics; finite element analysis; flow simulation; EHD equations; applied EHD device; charge formation mechanism; computer simulation; dissociation model; finite element method; injection model; needle-plane electrode system; nonuniform electric field; numerical computations; simulation method; software COMSOL Multiphysics 3.5; steady-state electrohydrodynamic flow structure; Electric fields; Electrodes; Fluid flow; Fluids; Ions; Mathematical model; Space charge; Computer simulation; charge and kinematic structure; dissociation; weak and strong injection; weakly conducting liquids;

fLanguage

English

Publisher

ieee

Conference_Titel

Dielectric Liquids (ICDL), 2011 IEEE International Conference on

Conference_Location

Trondheim

ISSN

2153-3725

Print_ISBN

978-1-4244-7352-6

Electronic_ISBN

2153-3725

Type

conf

DOI

10.1109/ICDL.2011.6015482

Filename

6015482