{"title":"Relaxation Phenomena and Electromagnetic Radiation of Oscillating Cloud Droplets","authors":"A. I. Grigor’ev, N. Yu. Kolbneva, S. O. Shiryaeva","doi":"10.1134/S1061933X25600472","DOIUrl":null,"url":null,"abstract":"<p>A theoretical study has been carried out for the influence of relaxation processes in water on the intensity of the electromagnetic radiation of an oscillating charged water droplet, which is assumed to be viscous and incompressible. A theoretical analytical expression of the dispersion equation has been derived for an oscillating and radiating droplet, with this expression having the form of a complex fifth-power algebraic relation. The charge relaxation in an oscillating charged water droplet affects the intensity of its electromagnetic radiation due to the conductivity of water. The highest electromagnetic radiation intensity is inherent in an ideally conducting liquid droplet. It is an order of magnitude higher than the radiation intensity of a liquid droplet with a finite conductivity. The lowest radiation intensity is inherent in a droplet of a dielectric liquid with a frozen-in charge. The surface tension relaxation affects the electromagnetic radiation of a charged oscillating droplet by disordering surface water molecules and altering the magnitude of the surface tension coefficient. The relaxation of water viscosity has no substantial effect on the damped capillary oscillations and electromagnetic radiation of cloud droplets.</p>","PeriodicalId":521,"journal":{"name":"Colloid Journal","volume":"87 4","pages":"462 - 480"},"PeriodicalIF":1.1000,"publicationDate":"2025-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Colloid Journal","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1134/S1061933X25600472","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
A theoretical study has been carried out for the influence of relaxation processes in water on the intensity of the electromagnetic radiation of an oscillating charged water droplet, which is assumed to be viscous and incompressible. A theoretical analytical expression of the dispersion equation has been derived for an oscillating and radiating droplet, with this expression having the form of a complex fifth-power algebraic relation. The charge relaxation in an oscillating charged water droplet affects the intensity of its electromagnetic radiation due to the conductivity of water. The highest electromagnetic radiation intensity is inherent in an ideally conducting liquid droplet. It is an order of magnitude higher than the radiation intensity of a liquid droplet with a finite conductivity. The lowest radiation intensity is inherent in a droplet of a dielectric liquid with a frozen-in charge. The surface tension relaxation affects the electromagnetic radiation of a charged oscillating droplet by disordering surface water molecules and altering the magnitude of the surface tension coefficient. The relaxation of water viscosity has no substantial effect on the damped capillary oscillations and electromagnetic radiation of cloud droplets.
期刊介绍：
Colloid Journal (Kolloidnyi Zhurnal) is the only journal in Russia that publishes the results of research in the area of chemical science dealing with the disperse state of matter and surface phenomena in disperse systems. The journal covers experimental and theoretical works on a great variety of colloid and surface phenomena: the structure and properties of interfaces; adsorption phenomena and structure of adsorption layers of surfactants; capillary phenomena; wetting films; wetting and spreading; and detergency. The formation of colloid systems, their molecular-kinetic and optical properties, surface forces, interaction of colloidal particles, stabilization, and criteria of stability loss of different disperse systems (lyosols and aerosols, suspensions, emulsions, foams, and micellar systems) are also topics of the journal. Colloid Journal also includes the phenomena of electro- and diffusiophoresis, electro- and thermoosmosis, and capillary and reverse osmosis, i.e., phenomena dealing with the existence of diffusion layers of molecules and ions in the vicinity of the interface.
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