【摘要】 本文应用空泡动力学理论计算了可压缩液体中固体边壁附近空化空泡的溃灭过程及边壁上的最大压强P_max,比较了不同掺气量对空泡溃灭压强的影响。计算结果表明,掺气减蚀的主要原因之一是降低了流体中的音速。更多还原

【Abstract】 By the theory of bubble dynamics, this paper studies the collapsing process of a cavitation bubble in an air-entrained inviscid compressible liquid near a solid boundary. The maximum pressure on the solid wall is computed. The effect on the bubble-collapsing pressure of different air contents has been investigated. It is shown that the cavitation damage reduction effect of air entrainment is chiefly due to the resulting decrease in sonic speed in the liquid.更多还原