Chapter:

Laminar-Pipe-Flow

 An oil of viscosity 9 poise and specific gravity 0.9 is flowing through a horizontal pipe of 60 mm diameter. If pressure drop in 100 m length of pipe is `1800 (kN)/m^2`, determine:

  • The rate of flow of oil
  • The centre line velocity
  •  The total frictional drag over 100 m length
  • The power required to maintain flow
  • The velocity gradient at pipe wall
  • The velocity and shear stress at pipe wall
  • The velocity and shear stress at 8mm from wall.