Kama State Academy of Engineering and economics INEKA

Naberezhnyye Chelny, Russia

Kama State Academy of Engineering and economics INEKA

Naberezhnyye Chelny, Russia
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Akhmetov N.D.,Kama State Academy of Engineering and economics INEKA | Gimadeev M.M.,Kama State Academy of Engineering and economics INEKA | Drulis V.N.,Kama State Academy of Engineering and economics INEKA | Krivosheev V.A.,Kama State Academy of Engineering and economics INEKA | Rzaeva T.V.,Kama State Academy of Engineering and economics INEKA
Russian Aeronautics | Year: 2011

A technique for calculating the energy parameters of shock waves at electrical discharge in water is presented for the transition region of discharge channel expansion using as the base the predetermined characteristics of discharge circuit. The technique is based on the solution of energy transport equation that is similar in form to that of radiative transfer. The validity of the presented approach was experimentally verified. © 2011 Allerton Press, Inc.


Rozentsvaig A.K.,Kama State Academy of Engineering and Economics INEKA | Strashinskii C.S.,Kama State Academy of Engineering and Economics INEKA
High Temperature | Year: 2011

Hydrodynamic aspects of boiling up of a disperse phase in a homogeneous turbulent flow of an emulsion is studied. It is assumed that the disperse-phase drops of an emulsion are metastable, but their temperature is insufficient for stable spontaneous nucleation having a fluctuation nature. Drops with typical size exceeding the turbulence microscale capable of boiling up are considered. The maximum velocities arising in the resonance oscillations of drops with the diameter of 1 and 100 μm and amplitude of the oscillations equal to the diameter of the drop of the water-organosilicon liquid PES-5 emulsion are estimated. The time delays of boiling up of the emulsion show that the probability of initiated boiling up is quite high. In the presence of the disperse phase of the zones of local vacuum in the volume and negative pressure, drops in a definite size range can boil up without a time delay.

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