![]() The Flow Factor k v and Flow Coefficient C v are very similar. Table 4 - Resistance coefficient for various fittings Fitting The friction coefficient is for laminar flow i.e. This procedure has also been included in an easy to use Friction Coefficient Calculator. It show the Darcy-Weisbach friction factor as function of roughness and Reynolds number and is a quick way to quickly determine the friction factor.Īnother possibility is to calculate the friction coefficient using the equations in the next section. One way to determine it is by using The Moody Diagram. It is a function of surface roughness and flow type. The friction coefficient shall be determined in order to calculate the friction loss in the straight pipes. Table 1 - Hydraulic diameter for different pipe shapes Cross section shapeĭ out = outer diameter and D in=Inner diameterįriction loss in straight pipes Friction Coefficient - Moody Diagram ![]()
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