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Properties

  • The atmPlantCanopyTSource applies sources on temperature, i.e. T, to incorporate effects of plant canopy for atmospheric boundary layer modelling.
  • The atmPlantCanopyTSource can be applied on any RAS turbulence model.
  • The atmPlantCanopyTSource inherits the traits of the fvOption, and cellSetOption.

Corrections applied to:

T
Temperature [K]

Required fields:

T
Temperature [K]
qPlant
Tree-height based specific heat flux [m\(^2\)/s\(^3\)]

Model equations

The model expression:

\[f_M += \alpha \rho \frac{q_{plant}}{C_{p_0}}\]

Where:

\(f_M\)
fvMatrix of the temperature field [K/s]
\(q_{plant}\)
Tree-height based specific heat flux [m2/s3]
\(C_{p_0}\)
Specific heat capacity [m2/s2/K]
\(\alpha\)
Phase fraction in multiphase computations, otherwise equals to 1
\(\rho\)
Fluid density in compressible computations, otherwise equals to 1

Usage

Example of the fvOptions specification using constant/fvOptions file:

atmPlantCanopyTSource1
{
    // Mandatory entries (unmodifiable)
    type                  atmPlantCanopyTSource;

    atmPlantCanopyTSourceCoeffs
    {
        // Mandatory (inherited) entries (unmodifiable)
        selectionMode    all;

        // Optional entries (unmodifiable)
        rho             rho;
        Cp0             1005.0;
    }

    // Optional (inherited) entries
    ...
}

where the entries mean:

Property Description Type Required Default
type Type name: atmPlantCanopyTSource word yes -
rho Name of density field word no rho
Cp0 Specific heat capacity [m2/s2/K] scalar no 1005.0

The inherited entries are elaborated in:

Further information

Tutorials

Source code

History:

  • Introduced in version v2006