modelGeneric
Generic | No constraint between dimension, crossArea, and perimeter
Extends from PartialGeometry.
Information
There is no assumed constraint between the variables dimension, crossArea, and perimeter nor fixed equations for laminar or turbulent geometric correction coefficients (ks).
This model can therefore be used for any shape desired but it is upon the user to ensure that calculations using this geometry are applicable.
Components
| Type | Name | Default | Description |
|---|---|---|---|
| SI.Length | dimension (from PartialGeometry) | 0.01 | Characteristic dimension (e.g., hydraulic diameter) |
| SI.Area | crossArea (from PartialGeometry) | 0.25*Modelica.Constants.pi*dimension*dimension | Cross-sectional area |
| SI.Length | perimeter (from PartialGeometry) | Modelica.Constants.pi*dimension | Wetted perimeter |
| SI.Length | dlength (from PartialGeometry) | 1.0 | Pipe length |
| SI.Angle | angle (from PartialGeometry) | 0.0 | Vertical angle from the horizontal (-pi/2 < x <= pi/2) |
| SI.Length | dheight (from PartialGeometry) | dlength*sin(angle) | Height change (port_b - port_a) |
| SI.Height | roughness (from PartialGeometry) | 2.5e-5 | Average height of surface asperities |
| Units.NonDim[2] | ks (from PartialGeometry) | Geometric correction coefficients: {laminar, turbulent} | |
| Units.NonDim | k_lam | 1.0 | Laminar region geometric correction coefficient |
| Units.NonDim | k_turb | 1.0 | Turbulent region geometric correction coefficient |