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Prikladnaya Mekhanika i Tekhnicheskaya Fizika, 2001, Volume 42, Issue 1, Pages 72–76
(Mi pmtf2714)
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This article is cited in 3 scientific papers (total in 3 papers)
Shock–free breakup of droplets. Temporal characteristics
B. E. Gel'fanda, B. Vieillib, I. Gekalpb, C. Chauveaub a Institute of Chemical Physics, Russian Academy of Sciences, Moscow, 117977
b Gorenje Laboratory, National Center for Scientific Research, 45071 Orleans (France)
Abstract:
In the present paper, we consider the shock–free breakup of droplets in their encounter with a layer (sheet) of a moving gas in the absence of pressure perturbations when the droplets are affected by a short U–shaped pulse of aerodynamic forces. Under a high pressure of the ambient gas medium $p_0$ = 20–80 bar, the droplets (ethanol or liquid oxygen) have a chance to break up after stay in a thing (2–5 mm thick) gas layer (jet) moving with a velocity of 1–10 m/sec. A distinctive feature of the process is that the characteristic time of droplet deformation and the period of natural oscillations coincide with the residence time for the droplets in the region of their interaction with the gas stream. Empirical formulas are proposed for determination of the total breakup time and the duration of the droplet disintegration stage in shock–free breakup.
Received: 28.02.2000
Citation:
B. E. Gel'fand, B. Vieilli, I. Gekalp, C. Chauveau, “Shock–free breakup of droplets. Temporal characteristics”, Prikl. Mekh. Tekh. Fiz., 42:1 (2001), 72–76; J. Appl. Mech. Tech. Phys., 42:1 (2001), 63–66
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https://www.mathnet.ru/eng/pmtf2714 https://www.mathnet.ru/eng/pmtf/v42/i1/p72
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