smoothingModel_constDiffSmoothing command

Syntax:

Defined in couplingProperties dictionary.

smoothingModel constDiffSmoothing;
constDiffSmoothingProps
{
    lowerLimit number1;
    upperLimit number2;
    smoothingLength lengthScale;
} 

• number1 = scalar fields will be bound to this lower value
• number2 = scalar fields will be bound to this upper value
• lengthScale = length scale over which the exchange fields will be smoothed out

Examples:

constDiffSmoothingProps
{
    lowerLimit 0.1;
    upperLimit 1e10;
    smoothingLength 1500e-6;
} 

Description:

The "constDiffSmoothing" model is a basic smoothingModel model which reads a smoothing length scale being used for smoothening the exchange fields (voidfraction, Ksl, f if present). This model can be used for smoothing explicit force coupling fields, as well as implicit fource coupling algorithms (see solver "cfdemSolverPisoImEx").

Restrictions: Should be used for monodisperse cases only. Time derivatives of the voidfraction field are calculated incorrectly, so don't use them in your solver when smoothing is applied.

Related commands:

smoothingModel