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Volume 2, Issue 4
Simulation of Liquid Metal Droplets from Field Emission

A. VanderWyst, A. Christlieb, M. Sussman & I. D. Boyd

Commun. Comput. Phys., 2 (2007), pp. 640-661.

Published online: 2007-02

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  • Abstract

Liquid metal droplets are accelerated by electrostatic forces in a process known as field emission. In this study, we simulate the emission of charged indium droplets on a needle in 2D cylindrical coordinates. The boundary element method is used to rapidly and accurately calculate the electric field on the fluid surface, which is then advected forward in time using level sets. This is the first time these methods have been combined, and this combination addresses difficult detachable surface tracking issues successfully. A histogram of droplet charge-to-mass ratio is generated in which it is predicted that smaller satellite droplets are more densely charged. In addition, our model is compared with independent pre- and post-snap off data and produces good agreement with the result.

  • Keywords

Field emission electric propulsion, modeling, level set, boundary element method.

  • AMS Subject Headings

65C20, 65M06, 65N38, 65Z05, 74S15, 76B45, 81T80

  • Copyright

COPYRIGHT: © Global Science Press

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@Article{CiCP-2-640, author = {A. VanderWyst, A. Christlieb, M. Sussman and I. D. Boyd}, title = {Simulation of Liquid Metal Droplets from Field Emission}, journal = {Communications in Computational Physics}, year = {2007}, volume = {2}, number = {4}, pages = {640--661}, abstract = {

Liquid metal droplets are accelerated by electrostatic forces in a process known as field emission. In this study, we simulate the emission of charged indium droplets on a needle in 2D cylindrical coordinates. The boundary element method is used to rapidly and accurately calculate the electric field on the fluid surface, which is then advected forward in time using level sets. This is the first time these methods have been combined, and this combination addresses difficult detachable surface tracking issues successfully. A histogram of droplet charge-to-mass ratio is generated in which it is predicted that smaller satellite droplets are more densely charged. In addition, our model is compared with independent pre- and post-snap off data and produces good agreement with the result.

}, issn = {1991-7120}, doi = {https://doi.org/}, url = {http://global-sci.org/intro/article_detail/cicp/7921.html} }
TY - JOUR T1 - Simulation of Liquid Metal Droplets from Field Emission AU - A. VanderWyst, A. Christlieb, M. Sussman & I. D. Boyd JO - Communications in Computational Physics VL - 4 SP - 640 EP - 661 PY - 2007 DA - 2007/02 SN - 2 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/cicp/7921.html KW - Field emission electric propulsion, modeling, level set, boundary element method. AB -

Liquid metal droplets are accelerated by electrostatic forces in a process known as field emission. In this study, we simulate the emission of charged indium droplets on a needle in 2D cylindrical coordinates. The boundary element method is used to rapidly and accurately calculate the electric field on the fluid surface, which is then advected forward in time using level sets. This is the first time these methods have been combined, and this combination addresses difficult detachable surface tracking issues successfully. A histogram of droplet charge-to-mass ratio is generated in which it is predicted that smaller satellite droplets are more densely charged. In addition, our model is compared with independent pre- and post-snap off data and produces good agreement with the result.

A. VanderWyst, A. Christlieb, M. Sussman and I. D. Boyd. (2007). Simulation of Liquid Metal Droplets from Field Emission. Communications in Computational Physics. 2 (4). 640-661. doi:
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