空泡运动非线性动力学特性的数值研究

Numerical Investigation of Nonlinear Dynamics of Cavitation Bubble Motion

在考虑了液体可压缩性的影响后 ,对空泡径向运动的非线性动力学特性进行了数值研究 ,结果表明空泡运动呈现强烈的非线性动力学特性 ,倍周期分岔是空泡运动达到混沌的途径之一。揭示了空泡运动规律所具有的不确定性。

The nonlinear dynamic equation of cavitation bubble radial motion has been investigated numerically after accounting for the liquid compressibility. It is shown that the bubble motion presents the intense feature of nonlinear dynamics and the period doubling bifurcation is one of the routes to chaos. The indetermination of the cavitation bubble motion is revealed.