modelTrapezoid
Extends from PartialGeometry.
Information
Components
| Type | Name | Default | Description |
|---|---|---|---|
| SI.Length | a1 | 0.01 | Small parallel dimension |
| SI.Length | a2 | 0.02 | Large parallel dimension |
| SI.Length | h | 0.01 | Distance between a1 and a2 |
| SI.Angle | theta1 | Modelica.Constants.pi/3 | Angle formed by a2 and side 1 |
| SI.Angle | theta2 | Modelica.Constants.pi/3 | Angle formed by a2 and side 2 |
| 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} | |
| Real | R_ah | 0.5*(a1 + a2)/h | Ratio of parallel sides/height |