The Prandtl mixing length is
(A) Zero at the pipe wall and is a universal constant
(B) Independent of radial distance from the pipe axis
(C) Independent of the shear stress
(D) Useful for computing laminar flow problems
(A) Zero at the pipe wall and is a universal constant
(B) Independent of radial distance from the pipe axis
(C) Independent of the shear stress
(D) Useful for computing laminar flow problems