Доклады Академии наукДоклады Академии наук0869-5652The Russian Academy of Sciences1281110.31857/S0869-5652485138-43Research ArticleA comparative analysis of the interaction regimes of two drops and their large population in an aerosol cloudVysokomornayaO. V.vysokomornaja@tpu.ruRebrovA. K.<p>Academician of the RAS</p>vysokomornaja@tpu.ruStrizhakP. A.pavelspa@tpu.ruShlegelN. E.pavelspa@tpu.ruNational Research Tomsk Polytechnic UniversityKutateladze Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences19052019485138432205201922052019Copyright © 2019, Russian academy of sciences2019<p>A comparative analysis of experimental results obtained by different researchers using two different experimental approaches is presented: phenomenological (registration of conditions, characteristics and modes of interaction between a drop of a shell and a target drop) and statistical (analysis of collisions of tens and even hundreds of drops of liquids as part of an aerosol). The ranges of Weber criterion values (the basic parameter used for analyzing the effects of collisions of droplets in a gaseous medium) are established, corresponding to bounce, coalescence, reflexive and stretching separation, disruption, according to the results of all considered experimental research. The bounce of droplets upon collision can be observed under the conditions We = 0.350.5; the probability of droplet coalescence is maximum in the range We = 17.5; it is possible to reliably predict spreading at We = 1550; splitting of droplets most often occurs at values We 50. The probability of occurrence of other scenarios in the selected We ranges is not zero. The conclusion about the need to combine experimental techniques to obtain the most reliable data and their further use in the development of prognostic models is formulated.</p>dropaerosol streamcollisionbouncecoalescencereflexive and stretching separationdisruptionWeber criterionкапляаэрозольный потокстолкновениеотскоккоагуляцияразлётдроблениекритерий Вебера[Paruchuri S., Brenner М. Р. // Phys. Rev. Lett. 2007. V. 98. Article ID134502.][Eggers J., Villermaux E. // Rept. Prog. Phys. 2008. V. 71. ID036601.][Sprittles J. E., Shikhmurzaev Y. D. // Phys. Ffluids. 2012. V. 24. 122105.][Varaksin A. Y. // High Temp. 2013. V. 51. P. 377-407.][Sazhin S.S. // Fuel. 2017. V. 196. P. 69-101.][Кузнецов Г. В., Волков Р. С., Стрижак П. А. // Письма в ЖТФ. 2015. Т. 41. № 17. С. 53-60.][Антонов Д. В., Волков Р. С., Кузнецов Г. В., Стрижак П. А. // ИФЖ. 2016. Т. 89. № 1. С. 94-103.][Архипов В. А., Ратанов Г. С., Трофимов В. Ф. // ПМТФ. 1978. № 2. С. 73-77.][Архипов В. А., Васенин И. М., Трофимов В. Ф. // ПМТФ. 1983. № 3. С. 95-98.][Пажи Д. Г., Галусто В. С. Основы техники распы- ливания жидкостей. М.: Химия, 1984.][Orme M. // Prog. Energy Comb. Sci. 1997. V. 23. № 1. P. 65-79.][Pawar S.K., Henrikson F., Finotello G., Padding J.T., Deen N.G., Jongsma A., Innings F., Kuipers J.A.M.H. // Powd. Tech. 2016. V. 300. P. 157-163]