Physics Help Forum viscosity from first principles?

 Thermodynamics and Fluid Mechanics Thermodynamics and Fluid Mechanics Physics Help Forum

 Mar 8th 2011, 11:05 PM #1 Junior Member   Join Date: Mar 2011 Posts: 3 viscosity from first principles? guys i am doing fluid mechanics for the first time at university level the textbook that was recommended by the lecturer is crap and the study guide only refers to the text book please guys need your help with this question 3 N is needed to push a 50 mm diameter piston, 30 mm long slides in a vertical cylinder with an inside diameter of 55 mm at a velocity of 0.5m/s. There is a film of lubricating oil between the two cylinders.Determine, from first principles, the viscosity of the lubricating oil film.Assume the lubricating oil is a Newtonian fluid. thanks jovan

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