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Laboratory simulation of spontaneous breakup of polluted water drops in the horizontal electric field

Bhalwankar, R and Subramanian, S and Kamra, AK (2014) Laboratory simulation of spontaneous breakup of polluted water drops in the horizontal electric field. Journal of Atmospheric and Solar-Terrestrial Physics, 119. pp. 147-152.

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A laboratory simulation experiment to study the spontaneous breakup of distilled and polluted water drops suspended in horizontal electric field of 0, 100, 300, 500kVm-1 has been performed in a small vertical wind tunnel. Water drops are formed from distilled water and from 100ppm solution of ammonium sulfate and potassium nitrate. Results show that the life time of the both distilled and polluted water drops decreases with the increase in electric field. The water drops formed from both distilled and polluted water become more oblate as the electric field is increased. The results have been interpreted in terms of enhanced instability of water drops due to the changes in surface tension, viscosity, conductivity and hydro-dynamics of the water drop. Significance of the results is discussed in view of the possible modification of the drop size distribution and consequent growth of raindrops and lightning activity due to the combined effect of pollutants and electrical forces in clouds formed over big cities.

Item Type: Article
Additional Information: Copyright of this article belongs to Elsevier.
Uncontrolled Keywords: Electric fields; Lightning; Size distribution; Water pollution, Drop size distribution; Horizontal electric fields; Laboratory simulation; Lightning activity; Polluted thunderclouds; Potassium nitrate; Raindrop size distribution; Vertical wind tunnel; Polluted water, Drops
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 28 Nov 2014 07:03
Last Modified: 28 Nov 2014 07:03

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