functionNusseltNumberMuzychka
claculates nusselt number out of reynolds and prandtl number according to Muzychka et. al
Information
This function calculates the Nusselt number for a rectangular duct according to Muzychka and Yovanovich [1].
The dimensionless length zStern as input has to be calculated as follows.
zStern = (sduct ⁄ √Across-section ) ⁄ (Re Pr )
References
[1]: Muzychka, Y. S.; Yovanovich, M. M. : Laminar Forced Convection Heat Transfer in the Combined Entry Region of Non-Circular Ducts ; Transactions of the ASME; Vol. 126; February 2004
Inputs
| Type | Name | Default | Description |
|---|---|---|---|
| Real | Re | Reynolds number | |
| Real | Pr | Prandtl number | |
| Real | aspRat | aspect ratio between duct height and width | |
| Real | zStern | dimensionless length | |
| Boolean | uniWalTem | true if uniform wall temperature boundary conditions | |
| Boolean | local | true if local nusslet number or false if average shall be calculated | |
| Real | gamma | shape parameter (rectangular duct: 0.1) |
Outputs
| Type | Name | Default | Description |
|---|---|---|---|
| Real | Nu | Nusselt number |
Revisions
- August 21, 2018, by Martin Kremer:
First implementation.