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مکانیک::
گرداب بازگشتی
The wake vortex behind a translating sphere plays an important role in resuspending dust, and sequence I (Re=850) shows the dynamics of the wake (visualized by a light sheet where the wake
The wake vortex generates a secondary vortex as it passes over the surface of the sphere.
The fluid adjacent to the wall is visualized in sequence II (Re=850) by introducing a thin layer of fluorescein dye, and this sequence serves to illustrate how the wake vortex pushes fluid initially adjacent to the wall to one side, which is entrained by the wake vortex, and transported away from the wall.
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