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FS#100 Specify initial and boundary conditions independently of the physical model

Metadata

Property Value
Project dumux
Category General
Reported by Anonymous (Id=0)
Reported at Aug 17, 2010 08:46
Type Feature Request
Version Git
Last edited by Andreas Lauser (andreas.lauser@iws.uni-stuttgart.de)
Last edited at Mar 6, 2012 17:14
Closed by Andreas Lauser (andreas.lauser@iws.uni-stuttgart.de)
Closed at Mar 6, 2012 17:14
Closed in version unknown (Id=0)
Resolution Implemented

Description

currently the initial and dirichlet conditions are specified by directly defining the primary variables of the model used by the problem. It would be desireable to be able to specify them in a model-agnostic way. For this, the PrimaryVariables class could retrieve its values from a fluid state. In pseudo-code this looks like


void dirichlet(PrimaryVariables &priVars)
{
   TwoPhaseFluidState fs(pW, Sn);
   priVars.assign(fs, PrimaryVariables::MassConservative);
};

a similar approach could be taken for neumann boundaries which would allow to specify fluxes in arbitrary ways:

void neumann(Fluxes &flux, const FluidState &fs)
{
   Scalar fluxWetting = 0.1; // m^3/(s*m^2)
   Scalar fluxNonwetting = 0.01; // m^3/(s*m^2)
   TwoPhaseVolumeFluxes volFlux(fs, fluxWetting, fluxNonwetting);
   flux.assign(volFlux, Fluxes::MassConservative);
};