Flow Near an Infinite Rotating Disk

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The steady flow resulting from an infinite disk rotating at a constant angular velocity in a Newtonian viscous fluid which would otherwise be at rest is considered. The viscous drag of the rotating surface will set up a swirling flow, with the fluid at the surface directed radially outward and generating a flow toward the disk to replace the fluid displaced outward. This fully three-dimensional flow is often called “von Karman’s viscous pump".” The solution of velocity variation for laminar flow induced by a rotating disk is one that is readily available in most fluid mechanics textbooks. CF-ACE+ Solution is compared with a similarity solution. 

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