Assignment:
For laminar flow in the entrance of to a pipe, as shown in figure, the entrance is uniform u=U0, and the flow downstream is parabolic in profile u(r)=C(r02-r2). Using integrla relations, show that the viscous drag exerted on the pipe walls between 0 and x is given by
Drag = πr02 (p0 - px -1/3pUo2)
![1056_Viscous Fluid Flow.JPG](https://secure.tutorsglobe.com/CMSImages/1056_Viscous Fluid Flow.JPG)
Provide complete and step by step solution for the question and show calculations and use formulas.