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在综合Ｍｅｒｒｉｔ等人对潜艇尾流实验研究的基础上，给出了潜艇尾流尺度的计算方法及典型算例结果。在稳定层化海洋中，潜艇尾流以圆锥形增长；在非层化海洋中，初期尾流也以圆锥形增长，但在浮力作用下，尾流垂向增长崩溃，然后以又薄又宽的近于矩形截面增长，最后垂向尺度趋于常值。对尾流影响最重要的参数是付汝德数和Ｂｒｕｎｔ－Ｖａｉｓａｌａ 周期。
Based on Merrit et al. ’S experimental study on submarine wake, the calculation method of submarine wake scale and the typical example results are given. In a stable stratified ocean, the wake of the submarine increases conically. In the non-stratified ocean, the initial wake also grows in a conical shape. However, under buoyancy, the wake grows vertically and collapses, Near the rectangular cross-section growth, the last vertical scale tends to constant. The most important parameters affecting the wake are the Fu Rude number and the Brunt-Vaisala cycle.