Properties🔗
- The
atmNutSource
adds/subtracts a given artificial turbulent viscosity field to/fromnut
for atmospheric boundary layer modelling. - The
atmNutSource
can be applied on any RAS turbulence model. - The
atmNutSource
inherits the traits of the fvOption, andcellSetOption
.
Corrections applied to:
nut
- Turbulent viscosity [m\(^2\)/s]
Required fields:
nut
- Turbulent viscosity [m\(^2\)/s]
artNut
- Artificial turbulent viscosity [m\(^2\)/s]
Model equations🔗
The model expression:
\[\nu_t += \nu_{t_{art}}\]Where:
- \(\nu_t\)
- Turbulent viscosity [m2/s]
- \(\nu_{t_{art}}\)
- Artificial turbulent viscosity [m2/s]
Usage🔗
Example of the fvOptions specification using constant/fvOptions
file:
atmNutSource1
{
// Mandatory entries (unmodifiable)
type atmNutSource;
atmNutSourceCoeffs
{
// Mandatory (inherited) entries (unmodifiable)
selectionMode all;
// Optional entries (unmodifiable)
nut artNut;
}
// Optional (inherited) entries
...
}
where the entries mean:
Property | Description | Type | Required | Default |
---|---|---|---|---|
type | Type name: atmNutSource | word | yes | - |
nut | Field name of artificial nut
|
word | no | artNut |
The inherited entries are elaborated in:
-
fvOption
cellSetOption
Further information🔗
Source code
History:
- Introduced in version v2006