functionlinearQuadraticPressureLoss
Linear-quadratic pressure loss function
Extends from Internal.FlowResistance.partialPressureLoss (Partial pressure loss function).
Information
This pressure loss is linear-quadratic in the massflow with the linear factor k and the quadratic factor k2:
dp := k*m_flow + k2*m_flow*abs(m_flow);
For a pure linear pressure loss choose k2 = 0; for a pure quadratic loss choose k=0.
Inputs
| Type | Name | Default | Description |
|---|---|---|---|
| SI.MassFlowRate | m_flow (from partialPressureLoss) | Mass flow rate | |
| SI.Density | rho (from partialPressureLoss) | Density | |
| SI.DynamicViscosity | mu (from partialPressureLoss) | Dynamic viscosity | |
| SI.Length | r (from partialPressureLoss) | Radius | |
| SI.Length | l (from partialPressureLoss) | Length | |
| Real | k | 0 | Linear resistance coefficient |
| Real | k2 | 0 | Quadratic resistance coefficient |
Outputs
| Type | Name | Default | Description |
|---|---|---|---|
| SI.PressureDifference | pressureLoss (from partialPressureLoss) | pressure loss (dp) |