论文部分内容阅读
本文从单个空泡溃灭时的泡壁运动方程出发,分析了空泡溃灭时间T_0和最大溃灭半径R_(max)之间的关系,导出了空泡溃灭时的噪声声压随空泡半径变化的公式,以及噪声声压的峰值与溃灭时间T_0的对应关系,进而建立了单个空泡溃灭时的噪声模型。据此,利用空泡溃灭时的随机特性,又建立了区域群体空化噪声的数学模型,为区域空化噪声的计算机仿真研究开辟了广阔的前景。
In this paper, based on the motion equation of bubble wall at the collapse of a single bubble, the relationship between the bubble collapse time T_0 and the maximum collapse radius R max is analyzed. The formula of the bubble radius change and the corresponding relationship between the peak value of the sound pressure and the collapse time T_0, and then the noise model of a single bubble collapse is established. Therefore, the mathematical model of regional population cavitation noise is also established by utilizing the random characteristic of bubble collapse, which opens up a broad prospect for the computer simulation of regional cavitation noise.