Friction correlation

Two different correlations are used in quite similar modules:

• DynamicOnePhaseFlowPipe → Zigrang
• LumpedStraightPipe → Idel’Cik

What is strange is that the Zigrang correlation is introduced in the § of the Baligh&Daniel's book dedicated to the second module. While the Idel'Cik one is not introduced.

In some test cases (TANDEM project) these correlations results in limited but sensible variation (a corrective coefficient of about 0.913 is applaied in the first module to have the same pressure drop than in the second).

Should we have homogenized modules?

added enhancement label

changed milestone to %ThermoSysPro v5.0

added model label

added Modeli label

To be tested. It should be discussed in DevCom (and how to code correlations, for instance with replaceable functions)

Some benchmarks between the two correlations (if possible) or a litterature review, could be interesting...

assigned to @mazurie.baptiste