libraries_porousBoundaryConditions_eventFlux

eventFlux BC

Description

This boundary condition provides a fixed value condition for a given variable C calculated as:

C = (constantValue+eventValue) / totalFluxBC

where constantValue is a constant and eventValue a time-dependent fixed flux (linear interpolation between the two closest dates).

As for all source terms of the toolbox, negative values indicates that flow is going inside the domain.

Usage

<patchName>
{
    type            eventFlux;
    constantValue   -50;
    eventFile       "/path/to/event/file.dat";
    phiName         phi; // optional (phi by default)
    value           uniform 0; // optional initial value (necessary for paraview display)
}

The event values are given in the event file eventFile.

Comments

The keyword eventFlux is recognized by the dispersion models of the toolbox (such as alphaDispersion) which set the dispersion coefficient Deff equal to zero along the boundary eventFlux to ensure that fixed fluxes are correctly injected.

Restrictions

The eventFlux BC can be used with:

• groundwaterTransport2DFoam
• groundwaterTransportFoam
• porousScalarTransport2DFoam
• porousScalarTransportFoam

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