Physically, at a special critical wave speed the flow may have a naturally periodical separated-reattached pattern, with each wave trough capturing a stable vortex ring.

物理上看，在一个特定的临界行波速下会形成自发的周期性分离再附流，每个波谷的分离区捕获一个稳定的涡环。

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Theoritical analysis has shown that triangular singularity distribution has special advantages over the other ones(vortex ring or constant distribution) in the prediction of nonuniform flow field.

理论分析表明三角形奇点分布形态在非均匀流场计算中具有其独特的优越性。

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