Abstract:
Polydispersive gas-liquid mixture with continuous bubble sizes distribution has unique property of increased dissipation induced by mechanism analogous to Landau attenuation. The essence of proposed method was to use short oscillating pressure pulses induced by electromechanical impact to stiff metal membrane of moderate 7-8 bar intensity in vertical gasliquid shock tube. It was shown that such kind pulses destroy initial bubbles to smaller ones with broad size distribution, and promote conditions to coagulate them into greater bubble’s sizes.