timeDependentAxialProfileFvPatchScalarField

Description

The timeDependentAxialProfileT boundary condition allows to impose a time dependent temperature axial profile on a patch. In case an oxide layer is present, an additional thermal resistance corresponding to the oxide is considered.

Warning

The axial locations provided to this boundary conditions are NOT normalized but absolute values expressed in \(m\).

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Options

The timeDependentAxialProfileT fvPatchField can be selected in the patch subdictionary inside the boundaryField subdictionary of the temperature field.

Parameters in the patch subdictionary for timeDependentAxialProfileT:

axialProfileDict	Dictionary containing the information related to the temperature time-dependent axial profile.
outerOxideTemperature	If the corrosion model is present, this keyword specifies the initial outer temperature (i.e. the one outside the oxide layer). If not present, the initial oxide outer temperature is set to the one specified in value.
value	The initial temperature value (in case of oxidation model, it is the outer temperature of the metallic portion of the body).

Parameters in the subdictionary axialProfileDict:

axialLocations	Inside the dictionary axialProfileDict, a list of axial location at witch the axial profile values are given. The axial values are NOT normalized.
data	Inside the dictionary axialProfileDict, a 2D table of the axial profile values in K (one row per time point; in each list one value per axial location).
axialInterpolationMethod	Inside the dictionary axialProfileDict, a keyword for selecting the type of axial interpolation (linear or step). By default is linear.
timeInterpolationMethod	Inside the dictionary axialProfileDict, a keyword for selecting the type of time interpolation (linear or step). By default is linear.

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Usage

To apply the timeDependentAxialProfileT boundary condition to a given patch, the following example can be used as a template:

claddingOuterSurface
{
    type            timeDependentAxialProfileT;
    axialProfileDict
    {
        timePoints  (0 1e2 2e2 ... );
        timeInterpolationMethod  linear;

        // Note: axial locations are NOT normalized
        axialLocations ( 0 0.5 1 1.5 ... );
        axialInterpolationMethod linear;

        data (
            (400 420 430 425 ... )
            (450 470 480 475 ... )
            (440 460 470 465 ... )
            :
            :
            :
        );
    }

    value           uniform 300;

    // If the corrosion model is present, the initial outer temperature
    // (i.e. the one outside the oxide layer) can be specified with the
    // following keyword. Otherwise, it is set equal to "values"
    outerOxideTemperature           uniform 300;
}