Multiscale modeling of electrospray ion emission-Reference-Cited by-同舟云学术

Multiscale modeling of electrospray ion emission

Published:2022-05-21 Issue:19 Volume:131 Page:193301
ISSN:0021-8979
Container-title:Journal of Applied Physics
language:en
Short-container-title:Journal of Applied Physics

Author:

Petro Elaine M.¹^ORCID,Gallud Ximo²^ORCID,Hampl Sebastian K.²^ORCID,Schroeder Madeleine²^ORCID,Geiger Carl¹^ORCID,Lozano Paulo C.²^ORCID

Affiliation:

1. Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York 14850, USA

2. Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

Abstract

A multi-scale approach to electrospray ion source modeling has been developed. The evolution of a single-emitter electrospray plume in a pure ionic regime is simulated with a combination of electrohydrodynamic fluids and n-body particle modeling. Simulations are performed for the ionic liquid, EMI-BF4, firing in a positive pure-ion mode. The metastable nature of ion clusters is captured using an ion fragmentation model informed by molecular dynamics simulations and experimental data. Results are generated for three operating points (120, 324, and 440 nA) and are used to predict performance relevant properties, such as the divergence angle and the extractor surface impingement rate. Comparisons to experimental data recorded at similar operating points are provided.

Funder

National Aeronautics and Space Administration

Publisher

AIP Publishing

Subject

General Physics and Astronomy

Link

https://aip.scitation.org/doi/pdf/10.1063/5.0065615

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