Exercise 3.II Boundary layer on an oscillating plate

Through dimensional analysis reasoning, determine a set of dimensioidess numbers with which to ejqjress the dependency of S on the parameters of the problem. 

When the amplitude of oscillations is sufficiently small, experiments show that the thickness, S, of the boundary layer does not depend on the amplitude 2a of the oscillations. Can you then provide a simple expression of the boundary layer 

Exercise 3.III Head capacity curve of a centrifugal pump 

What is the maximum flow rate deliverable by the pump, and what is the maximum height to which the pump can lift the fluid  

The company that manufactures this pump offers in its catalog another pump having a diameter D2 = 150 mm, which runs at a speed of 150 rpm. 

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