.ThermofluidStream.Undirected.FlowControl.TanValve .ThermofluidStream.Undirected.FlowControl.TanValveUndirected implementation of the Tan valve.
The TanValve is the most basic valve and can be used when no valve type is set yet.
It adjusts its flow resistance coefficient according to a tangens of the input. The pole of the tan function can lead to numerical problems.