Shock Waves in a Fluid with Bubbles Containing Evaporating Drops of a Liquefied Gas |
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| Authors: | O R Ganiev N S Khabeev |
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| Institution: | (1) Drittes Physikalisches Institut, Universit?t G?ttingen, Friedrich-Hund-Platz 1, 37077 G?ttingen, Germany;(2) Universit?t G?ttingen, Friedrich-Hund-Platz 1, 37077 G?ttingen, Germany;(3) Center for Nanoscale Science and Engineering, Department of Mechanical Engineering, North Dakota State University, 111 Dolve Hall, 58105-5285 Fargo, ND, USA |
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| Abstract: | The propagation and reflection of one-dimensional plane unsteady waves and pulses in a mixture of a fluid with  two-phase bubbles containing evaporating drops is investigated. A significant effect of unsteady evaporation of the drops in the zone ahead of the shock wave on the wave propagation is demonstrated. The evaporation of the drops results in a pressure increase ahead of the wave and the shock wave as it were climbs to increasing pressure level. In contrast to bubbly fluids with single-phase bubbles, in a fluid with two-phase bubbles, at a fixed phase volume fraction, a decrease in bubble size results in an increase rather than a decrease of the oscillation amplitude. The wave reflection from a solid wall is essentially nonlinear and the maximum pressure attained at the wall is several times greater than the incident-wave intensity. |
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