An Experimental Investigation of the Coagulation of Aerosol in a Tube in the Vicinity of Subharmonic Resonance |
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| Authors: | D A Gubaidullin R G Zaripov R G Galiullin E R Galiullina L A Tkachenko |
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| Affiliation: | (1) Institute of Mechanics and Mechanical Engineering of the Kazan Scientific Center, Russian Academy of Sciences, Kazan, Republic of Tatarstan, Russian Federation;(2) Kazan State University, Kazan, Republic of Tatarstan, Russian Federation |
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| Abstract: | Nonlinear oscillation of aerosol in the vicinity of a resonance frequency that is twice lower than the first eigenfrequency (subharmonic resonance) is experimentally investigated in tubes with different conditions at the ends. The time dependence of the number density of aerosol droplets is determined, and the effect of the frequency and intensity of oscillation on the process of coagulation of droplets is studied. The nonmonotonic pattern of the dependence of the time of coagulation of aerosol droplets on the frequency of excitation with a minimal value at resonance is found. Ordered space-time structures (alternation of denser and looser regions of aerosol) are revealed in the visible region in the vicinity of the middle of a closed tube. |
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| Keywords: | nonlinear oscillation density of aerosol droplets space-time structures |
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