Two radii rl and r2 (r2 > rl) in the same horizontal plane have the same values in a free vortex and in a forced vortex. The tangential velocity at radius rl is the same in both vortices. Determine, in terms of r1, the radius r2 at which the pressure difference between rl and r2 in the forced vortex is twice that in the free vortex.

Two radii rl and r2 (r2 > rl) in the same horizontal plane have the same values in a free vortex and in a forced vortex. The tangential velocity at radius rl is the same in both vortices. Determine, in terms of r1, the radius r2 at which the pressure difference between rl and r2 in the forced vortex is twice that in the free vortex.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.3P: Evaluate the Nusselt number for flow over a sphere for the following conditions: D=0.15m,k=0.2W/mK,...

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