An Eulerian model of an electrospray of a highly conducting solution with Coulomb explosions

IF 2.9 3区 环境科学与生态学 Q2 ENGINEERING, CHEMICAL
F.J. Higuera , I.G. Loscertales
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引用次数: 0

Abstract

Coulomb explosions of small electrospray droplets of a high conductivity solution of a nonvolatile electrolyte in a volatile solvent are assumed to be nearly instantaneous events in which the exploding droplet loses certain fractions of its volume and charge by shedding a number of offspring droplets small compared with the parent droplet. Using this assumption, and leaving out the inertia of the droplets, an Eulerian model is proposed for the space evolution of a spray of electrified droplets which may undergo successive Coulomb explosions and may also reach an ion evaporation regime in which ions are emitted from their surface by field evaporation, until the solvent is virtually depleted.
具有库仑爆炸的高导电溶液电喷雾的欧拉模型
假设在挥发性溶剂中,非挥发性电解质的高电导率溶液中的小电喷雾液滴发生库仑爆炸时,爆炸液滴会脱落一些比母液滴小的子代液滴,从而损失一定的体积和电荷。利用这一假设,并忽略液滴的惯性,提出了一个欧拉模型,用于带电液滴喷雾的空间演化,这些液滴可能经历连续的库仑爆炸,也可能达到离子蒸发状态,在这种状态下,离子通过场蒸发从它们的表面发射出来,直到溶剂几乎耗尽。
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来源期刊
Journal of Aerosol Science
Journal of Aerosol Science 环境科学-工程:化工
CiteScore
8.80
自引率
8.90%
发文量
127
审稿时长
35 days
期刊介绍: Founded in 1970, the Journal of Aerosol Science considers itself the prime vehicle for the publication of original work as well as reviews related to fundamental and applied aerosol research, as well as aerosol instrumentation. Its content is directed at scientists working in engineering disciplines, as well as physics, chemistry, and environmental sciences. The editors welcome submissions of papers describing recent experimental, numerical, and theoretical research related to the following topics: 1. Fundamental Aerosol Science. 2. Applied Aerosol Science. 3. Instrumentation & Measurement Methods.
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