(a) Explain the terms: distorted models and undistorted models. What…

Question

(a) Explain the terms: distorted models and undistorted models. What is the use of distorted models?

(b) The loss of pressure $\Delta p$ for laminar flow in a pipe is a function of pipe length $l$, its diameter $D$, mean velocity $U$, and dynamic viscosity $\mu$. Obtain an expression for the pressure loss.