Darcy–Weisbach equation

The Darcy–Weisbach equation is a formula that is used to figure out the amount of pressure loss from fluid moving through pipe. Imagine you have a garden hose with water running through it. As the water runs through the hose, it will slow down and its pressure will drop, which is what the Darcy–Weisbach equation is used to calculate. The equation takes into account the shape of the pipe, how much turbulence the fluid is creating inside the pipe, and the length and diameter of the pipe. By taking these things into account, the equation can tell you how much pressure the water will lose as it moves through the pipe.