图12. 水下潜艇产生的各种尾迹示意图, 包括开尔文尾迹、内波、湍流尾迹、涡尾迹、煎饼旋涡; 图片来自网络
Fig.12. Various wakes generated by motion of submarine: Kelvin wake, internal waves, wake turbulence, vortex wake, and pancake eddies. The figure comes from the internet