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Dissipation in cone-jet electrosprays and departure from isothermal operation

M. Gamero-Castaño
Phys. Rev. E 99, 061101(R) – Published 26 June 2019

Abstract

Electrospraying in the cone-jet mode has being regarded an isothermal process, and the laws obtained under this assumption are considered valid throughout the operational range. However, self-heating due to dissipation is expected to be significant at sufficiently high electrical conductivities. This is confirmed by solving the isothermal leaky-dielectric model to evaluate the Ohmic and viscous dissipation, and estimate the temperature increase. Self-heating is important at conductivities 0.05S/m, increases rapidly at larger values, and requires the nonisothermal modeling of this regime.

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  • Received 16 January 2019

DOI:https://doi.org/10.1103/PhysRevE.99.061101

©2019 American Physical Society

Physics Subject Headings (PhySH)

Polymers & Soft Matter

Authors & Affiliations

M. Gamero-Castaño

  • Department of Mechanical and Aerospace Engineering, University of California, Irvine, California 92697, USA

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Issue

Vol. 99, Iss. 6 — June 2019

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