functionbaseFun
Base class for valve characteristics
Extends from Modelica.Icons.Function (Icon for functions).
Information
This is a partial function that defines the interface of valve characteristics. The function returns "rc = valveCharacteristic" as function of the opening "pos" (in the range 0..1):
dp = (zeta_TOT/2) * rho * velocity^2
m_flow = sqrt(2/zeta_TOT) * Av * sqrt(rho * dp)
m_flow = valveCharacteristic * Av * sqrt(rho * dp)
m_flow = rc * Av * sqrt(rho * dp)
Inputs
| Type | Name | Default | Description |
|---|---|---|---|
| Real | pos | Opening position (0: closed, 1: fully open) |
Outputs
| Type | Name | Default | Description |
|---|---|---|---|
| Real | rc | Relative flow coefficient (per unit) |