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A fluid flows in the positive x-direction through a long flat duct of length L, width W, and...

Flow in a slit with uniform cross flow (Fig. 3B.16). A fluid flows in the positive x-direction through a long flat duct of length L, width W, and thickness B, where L >> W >> B. The duct has porous walls at y = 0 and y = B, so that a constant cross flow can be maintained, with , = 0 a constant, everywhere. Flows of this type are important in connection with separation processes using the sweep diffusion effect. By carefully controlling the cross flow, one can concentrate the larger constituents (molecules, dust particles, etc.) near the upper wall.

 

 

Apr 07 2020 View more View Less

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