The pressure drop across the inlet and outlet connectors is
computed according to a turbulent friction model, i.e. is
proportional to the squared velocity of the fluid. The friction
coefficient can be specified directly, or by giving an operating
point, or as a multiple of the kinetic pressure. In the latter two
cases, the correction coefficient `Kfc` can be used to
modify the friction coefficient, e.g. to fit some experimental
operating point.

A small linear pressure drop is added to avoid numerical
singularities at low or zero flowrate. The `wnom` parameter
must be always specified; the additional linear pressure drop is
such that it is equal to the turbulent pressure drop when the
flowrate is equal to `wnf*wnom` (the default value is 1% of
the nominal flowrate).

**Modelling options**

The following options are available to specify the friction coefficient:

`FFtype = 0`: the hydraulic friction coefficient`Kf`is set directly.`FFtype = 1`: the hydraulic friction coefficient is specified by the nominal operating point (`wnom`,`dpnom`,`rhonom`).`FFtype = 2`: the pressure drop is`K`times the kinetic pressure.

Name | Description |
---|---|

Medium | |

squareReg |

*16 Dec 2004*by Francesco Casella:

Standard medium definition added.*18 Nov 2004*by Francesco Casella:

`Kfnom`removed,`Kf`can now be set directly.*18 Jun 2004*by Francesco Casella:

Adapted to Modelica.Media.*1 Oct 2003*by Francesco Casella:

First release.

Generated at 2020-06-05T01:40:05Z by OpenModelicaOpenModelica 1.16.0~dev-442-g2e5bc9f using GenerateDoc.mos