Turbulent flow : Prandtl’mixing length theory, Darcy-Weisbach equation, Nikuradse’ experiment, Colebrook-White and use of Moody’s diagram

Turbulent Flow: Turbulent flow is defined as that type of flow in which the fluid particles move in zigzag way. The fluid particle crosses the paths of each other. The Reynolds number (Re) is greater than 4000 then the flow is said to be turbulent. For example: a. Flow in river at the time of … Read more

Flow Through Pipes

Introduction to pipe flow: A pipe is a closed conduit (channel) which is used for carrying fluids under pressure. Pipes are commonly circular in section. The fluid in the pipes are subjected to frictional resistance due to shear stress. Reynolds experiment and flow based on Reynolds number.  Reynolds experiment is used to display laminar, transion … Read more

Introduction to Open Channel flow

Introduction to open channel flow and its practical application: Open channel flow is defined as the flow of a liquid with a free surface i.e. surface having constant pressure such as atmospheric pressure. Rivers, streams, canals and irrigation ditches are the example of open channel flow. Difference between open channel and pipe flows: Open channel … Read more