.FreeFluids.Pipes.AbruptAdaptor .FreeFluids.Pipes.AbruptAdaptorThe pressure assigned to a flow port is that measured at the pipe end, taking into account the velocity of the flow, as this is the preassure needed for the calculation of physical properties like density. When making connections, we assume equal pressure at all connecting ports, without taking into accound that, if the streams have different velocities, there will be a change in pressure. This makes the balance inexact. If we want to improve the calculation, taking into account the velocity impact, it is necessary to reference pressure and enthalpy to the same velocity. This is the function of the abrupt adapter. It is a frictionless adapter.
If we want to use the adapter, it is necessary to put one adapter at each end of the pipe, except for the connection of two only pipes of the same diameter. In this case the equal velocity is granted at the connection point.