A hydrodynamic journal bearing is subject to 2000 N load at a rotational speed of 2000 rpm Both bearing bore diameter and length are 40 mm. If radial clearance is 20 um and bearing is lubricated with an oil having viscosity 0.03 Pa-s, find the Sommerfield number of the bearing.

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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A hydrodynamic journal bearing is subject to 2000 N load at a rotational speed of 2000 rpm Both bearing bore diameter and length are 40 mm. If radial clearance is 20 um and bearing is lubricated with an oil having viscosity 0.03 Pa-s, find the Sommerfield number of the bearing. 

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