The effects of cavitation on the flow around a circular-cylinder array are studied by using a molecular dynamics simulation. Cavitation significantly affects vortex shedding characteristics. As the cavitation develops, the vibration acting on the cylinders decreases and eventually disappears. The further cavitation development generates a longer vapor region next to the cylinders, and the vortex streets are formed at further positions from the cylinders. The neighboring Kármán vortexes are synchronized in the antiphase in the absence of the cavitation. This synchronization is weakened by the cavitation, and an asymmetric wake mode can be induced. These findings help mechanical designs of fluid machinery that include cylinder arrays.

中文翻译：

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空化对圆柱阵列后面的Kármán涡的影响：分子动力学研究。

通过使用分子动力学模拟研究了空化对圆柱阵列周围流动的影响。空化会严重影响涡旋脱落特性。随着空化的发展，作用在气缸上的振动会减少并最终消失。进一步的气穴现象会在汽缸附近产生更长的蒸汽区域，并且涡流道会在汽缸的其他位置形成。在没有空化作用的情况下，相邻的Kármán涡流在反相中同步。空化作用削弱了这种同步，并且可以诱发不对称的唤醒模式。这些发现有助于包括气缸阵列在内的流体机械的机械设计。