recordInternalCoefficients
Coefficient record used in CentrifugalPump
Extends from Modelica.Icons.Record (Icon for records).
Information
Coefficient record internally used in CentrifugalPump and calculated either based on measurements or based on coefficients.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| SI.Density | rho_ref | 1000 | Reference density |
| SI.AngularVelocity | w_ref | 314.1592653589793 | Reference angular velocity |
| Real | head_ref | 1 | Reference for head, e.g. at peak efficiency |
| Real | V_flow_ref | 1 | Reference for volume flow rate, e.g. at peak efficiency |
| Real | eta_ref | 1 | Reference for efficiency, e.g. peak efficiency |
| Real[3] | c_head | {1, 0.23, -1.23} | Coefficients of second order head approximation polynomial |
| Real[3] | c_power | {0.20, 0.55, -0.28} | Coefficients of second order torque approximation polynomial (P=tau*w) |
| SI.Power | P_ref | rho_ref*Modelica.Constants.g_n*head_ref*V_flow_ref/eta_ref | Reference power |
| SI.Torque | tau_ref | P_ref/w_ref | Reference torque |
Revisions
-
May 2025, by Raphael Gebhart (raphael.gebhart@dlr.de):
Initial version.