general energy equation fluid mechanics calculator

This method does not consider the effect due to turbulence and subsequent losses caused by different velocities.

This approach is mostly associated with the Hazen-Williams or Manning’s equations. Head Loss or pressure drop in Pipe fitting is usually defined as the equivalent length of pipe that is added to the straight run of pipe. The Colebrook correlation friction factor for fiberglass pipe is determined as 0.04 mm which includes the head losses over joints. If the flow is Turbulent, the friction factor can be determined from the Moody diagram found in most fluid mechanics texts or calculated from the Colebrook equation. Type of Flow Reynolds Number Laminar Flow Re≤2200 Transition Flow Zone 2200≤Re≤4000 Turbulent Flow Re≥4000 Types of Fluids as per Reynold’s Number

The table given below determines the type of flow of fluid from the Reynolds number. The well-known Reynolds number equation is used to characterize the fluid flow. L = Length of the pipe, m Types of Fluid Flow.

The equation is as follows, J= (fLV 2)/2gD The disadvantage of this equation is that the Darcy-Weisbach friction factor is a variable that can be found in the standard chart available. This equation is applicable for all fluids for both laminar as well as turbulent flow. This equation states that pressure drop is directly proportional to the square of the velocity and the length of the pipe.

Manning’s Coefficient, n for ADPF fiberglass pipe is taken as 0.01.

General energy equation fluid mechanics calculator