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Calculation of the Added Mass and Damping Forces on Supercavitating Bodies

机译：超空泡体增加质量和阻尼力的计算

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A linearized formulation for the unsteady forces experienced by supercavitating bodies is developed in terms of their added mass and damping coefficients. The formulation is general, but is applied here using an axisymmetric base flow. Expressions for the added mass, damping and restoring tensors are derived in a form suitable for incorporation in a numerical "flight" simulation tool for supercavitating vehicles. Disk and conical cavitating bodies are investigated. It is found that the added mass in surge can actually be negative for small values of the reduced frequency. The physical interpretation of this phenomenon is provided.

机译：根据其增加的质量和阻尼系数，针对超空化体经历的非稳态力建立了线性化公式。该公式是通用的，但此处使用轴对称基流进行应用。附加质量，阻尼和恢复张量的表达式以适合合并到超空化飞行器的数值“飞行”模拟工具中的形式导出。研究了盘形和圆锥形空化体。已经发现，对于减小的频率的较小值，电涌的附加质量实际上可以为负。提供了这种现象的物理解释。

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Fine Neal E.; Uhlman James S.; Kring David C.;
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年度 2001
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正文语种 {"code":"en","name":"English","id":9}
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Calculation of the Added Mass and Damping Forces on Supercavitating Bodies

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