The hydrogen bubble flow visualization technique was used to study the effects of small semi-sphere on the boundary layer transition of flow over a smooth circular plate.
应用氢气泡流动显示技术对圆盘上小半球对边界层转捩的影响进行了观测。
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Physically walking in a clockwise (deosil) circular pattern to create an invisible circle of energy that encompasses the individual (or group) in an energy bubble.