Abstract—The paper presents theoretical considerations on gas bubbles behavior - analytic calculation of bubble time formation, extra pressure needed for the bubble formation and detachment, bubble size and correlation between the extra pressure and the liquid superficial tension.
In order to evaluate the theoretical relation for extra pressure calculation, the results of the tests performed on different metallic perforated plates Ø 60, with a specific number of orifices of different diameters, were used. The extra pressure needed for bubble formation varies from approximately 171 Pa for the MPP with 0.9 mm orifices to 245 Pa for the MPP with 0.2 mm orifices.
Index Terms—Bubble size, bubble detachment, extra pressure, orifice.
L. Mândrea is with the Faculty of Power Engineering, Politehnica University of Bucharest, RO (e-mail: mandrea_lucian@hotmail.com).
G. Oprina is with the National Institute for Research and Development in Electrical Engineering ICPE-CA (Incdie ICPE-CA), Bucharest, RO, Romania (e-mail: gabriela.oprina@icpe-ca.ro).
C. Băbuțanu, R. A. Chihaia, and L. A. El-Leathey are with the INCDIE ICPE-CA, Bucharest, RO, Romania (e-mail: corina.babutanu@icpe-ca.ro, rares.chihaia@icpe-ca.ro, andreea.elleathey@icpe-ca.ro).
R. Mirea is with the Romanian Research and Development Institute for Gas Turbines, Bucharest, RO, Romania (e-mail: radu.mirea@comoti.ro).
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Cite: Lucian Mândrea, Gabriela Oprina, Rareș-Andrei Chihaia, Lucia-Andreea El-Leathey, and Radu Mirea, "Theoretical and Experimental Study of Gas Bubbles Behavior," International Journal of Modeling and Optimization vol. 7, no. 3, pp. 145-151, 2017.
