An Experimental Study On The Flow Within Two Disks
Author(s)
P. Tsifourdaris, G.H. Vatistas & W. Ghaly
Abstract
An experimental study on the flow within two
disks
P. Tsifourdaris, G.H. Vatistas & W. Ghaly
Mechanical and Industrial Engineering Department, Concordia
University, Canada
Abstract
The present experimental study concerns the flows generated within the gap of
two parallel disks. For the sink-flow the reduction of the cross-sectional area
along the flow direction drives the average velocity to increase which is
accompanied by a static pressure drop. Due to the non-slip requirement on the
upper and lower disks, a boundary layer forms. Increase of the local inertia to
viscous forces ratio forces the radial velocity profile to flatten mid-channel. As
the radius becomes smaller, the plateau progressively expands towards the wall.
The source-flow in comparison to sink-flow, exhibits a reverse behavior of the
pressure along the flow direction. However, there is a special phenomenon
associated with this type of flow field, which is absent in the previous case.
Fluid particles near the walls, moving wit
Keywords
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