1. Differential Analysis

2. Continuity Equation

4. Momentum Equation

8. Under what conditions?????

11. So, From continuity equation

13. where

17. Simplest type of Couette flow

18. Steady, Laminar Flow in Circular Tubes Probably the best known exact solution to the Navier–Stokes equations is for steady, incompressible, laminar flow through a straight circular tube of constant cross section. This type of flow is commonly called Hagen-Poiseuille flow, or simply Poiseuille flow.

19. Continuity equation

20. Navier Stokes equation