On the structure of complicated shape solitary waves in a liquid with gas bubbles due to two different bubbles' sizes

摘要

The results of experimental and theoretical studies on the structure of mu ltisolitons in a bubbled liquid with two different bubble's sizes with radii ratios 1.5 and 1.7 are presented. Due to freon bubbles with low thermal losses it was found that long time evolution of initial pressure pulse is differed from early known. Firstly, the wave's structures which is similar to multisolitons are raised from the input signal, then they are decayed onto ordinary solitons and finally are coupled or tripled onto stable multisolitons of indexes (2,2) and (3,3). Calculations in accordance with developing theory have shown the likeness structures at the beginning and coincided multisolitons at the end of evolution, but differed in rarefaction between the solitons well seen in experiment which nature is still the riddle. To understand the wave's structure bifurcation the stationary waves was studied in a frame of Hamilton formalities with using the Poincare's cross sections technique.