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Resumen de Analysis method of negative ion by electrostatic atomization

Yu Okaue, Gaku Yoshikawa, Fumikazu Miyasaka, Katsuhiro Hirata

  • Purpose – The purpose of this paper is to propose an analysis method of negative ion by electrostatic atomization. Because the electrostatic atomization includes large deformation of a drop of water, it is difficult to analyze with conventional fluid analysis methods such as the finite differences method, the finite element method (FEM) and so on.

    Design/methodology/approach – In this method, electrostatic field equation is coupled with Navier‐Stokes equation of a drop of water, employing the moving particle semi‐implicit method and FEM. The validity of the method is verified through the measurement.

    Findings – It was found that the difference between calculated and measured results becomes large as the voltage increases.

    Research limitations/implications – In order to improve the accuracy, it is necessary to improve the way to calculate surface tension and the analysis condition.

    Originality/value – This paper confirms the usefulness of the numerical method to elucidate electrostatic atomization.


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