Question

Many patients have problems with urination.  

a. How could one quantify the flow rate through a ureter?

b. Define a lumped parameter model of such a flow.

c. How would you write the relevant simplified Navier-Stokes equations to describe this flow? Justify your assumptions.

d. If the urinary flow rate were 20 ml/s, calculate the velocity, shear rate, and shear stress in the urethra of diameter 2 mm?

e. Would measurements or CFD yield more accurate quantities?

Answer 1