Влияние растворенных веществ на размер капель воды в левитирующих капельных кластерах


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Effect of Dissolved Substances on the Size of Water Droplets in Levitating Droplet Clusters

A laboratory technique has been developed to study the effect of dissolved substances on the condensational growth of spherical droplets of water in a self-arranged droplet cluster levitating above a locally heated water surface, as well as on the equilibrium droplet size obtained by infrared heating of the cluster. Inorganic salts such as potassium and sodium chlorides were shown to significantly influence the condensation/evaporation process of water droplets even at low solute concentrations. In contrast, the influence of typical substances used in plant treatments is negligible. The new experimental results can be used in modeling various technological processes involving aqueous aerosols. These results might also be useful in studies of moisture transfer and precipitation formation in the atmosphere.

water droplets, droplet cluster, aqueous solutions, evaporation

DOI: http://doi.org/10.33257/PhChGD.25.5.1127

Александр Анатольевич Федорец, Эдуард Эдуардович Колмаков, Дмитрий Николаевич Медведев, Вячеслав Олегович Майоров, Леонид Александрович Домбровский

Том 25, выпуск 5, 2024 год



Разработана лабораторная методика изучения влияния растворенных веществ на конденсационный рост сферических капель воды в упорядоченном капельном кластере, левитирующем над локально нагретой поверхностью воды, а также на равновесный размер капель, получаемых при инфракрасном нагреве кластера. Было показано, что неорганические соли, такие как хлориды калия и натрия, значительно влияют на процесс конденсации/испарения капель воды даже при низких концентрациях соли. В отличие от них, влияние ряда веществ, используемых при обработке растений, незначительно. Новые экспериментальные результаты могут быть использованы при моделировании различных технологических процессов с участием водных аэрозолей. Эти результаты также могут быть полезны при изучении переноса влаги и образования осадков в атмосфере.

капли воды, капельный кластер, водные растворы, испарение

DOI: http://doi.org/10.33257/PhChGD.25.5.1127

Александр Анатольевич Федорец, Эдуард Эдуардович Колмаков, Дмитрий Николаевич Медведев, Вячеслав Олегович Майоров, Леонид Александрович Домбровский

Том 25, выпуск 5, 2024 год



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