The Channel Surface Properties tab of the Channel dialog is used to specify the geometrical and thermal properties of the cooling channel.
| Dialog element | Explanation |
|---|---|
| Cross-section | Select the type of cross-sectional shape you want to apply to the selected elements. |
| Diameter | Enter the required diameter for this component. |
| Channel heat transfer effectiveness | Specifies the heat transfer effectiveness (HTE) of the cooling channel. A HTE value of 1 (default) represents maximum heat transfer, a value of 0 represents no heat transfer. |
| Channel roughness | Specifies a relative channel roughness, defined by the thickness of the roughness relative to the diameter. If the value is left blank, the default value is used.
The relative channel roughness, along with the Reynolds number, is used to calculate the friction factor which is then used to calculate the pressure drop in the circuits. If the pressure drop is specified, the Reynolds number will be calculated using the relative roughness value. The relative channel roughness is also used in the boundary condition for the thermal equation of the Cool analysis. |