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Thermophysics and Aeromechanics

2009 year, number 1

Solution and hydrate formation behind a shock wave in liquid with nitrogen - carbon dioxide bubbles in a presence of surfactant

V.E. Dontsov
Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia, dontsov@itp.nsc.ru
Keywords: shock wave, liquid, gas bubbles, bubble fragmentation, solution, hydrate formation, surfactant
Pages: 89-101

Abstract

The processes of solution and hydrate formation behind a shock wave of moderate amplitude were studied experimentally in water with bubbles of nitrogen - carbon dioxide mixture at different initial static pressures in the medium and surfactant concentrations. It is shown that these bubbles do not affect significantly the processes of solution and hydrate formation behind a shock wave during the considered periods. The hypothesis about partial hydration of nitrogen from the gas mixture at intense formation of carbon dioxide hydrate was suggested for the conditions, when the pressure behind the wave is less than the equilibrium pressure of nitrogen hydrate formation at a given temperature.