Re: [DuMuX] Fluidmatrix interactionlaws - partial derivatives

2019-06-17 Thread Timo Koch
On 17.06.19 15:42, Flemisch, Bernd wrote: Hi Felix, the derivatives are currently only used inside the laws themselves, particularly for the regularization. See for example the pc function in regularizedvangenuchten.hh. There, the function VanGenuchten::dpc_dswe is called to determine the

Re: [DuMuX] Fluidmatrix interactionlaws - partial derivatives

2019-06-17 Thread Flemisch, Bernd
Right, I only grepped for the "swe" versions. The derivatives are also used in the sequential models. There's also a related issue https://git.iws.uni-stuttgart.de/dumux-repositories/dumux/issues/319 and merge request https://git.iws.uni-stuttgart.de/dumux-repositories/dumux/merge_requests/1607

Re: [DuMuX] Fluidmatrix interactionlaws - partial derivatives

2019-06-17 Thread Martin Schneider
Dear Felix, just an additional comment. In the file porousmediumflow/2p/incompressiblelocalresidual.hh these functions are called and this residual is used for the calculation of an analytical Jacobian, as Bernd already mentioned. Best regards, Martin Am 17.06.19 um 15:42 schrieb Flemisch,

Re: [DuMuX] Fluidmatrix interactionlaws - partial derivatives

2019-06-17 Thread Flemisch, Bernd
Hi Felix, the derivatives are currently only used inside the laws themselves, particularly for the regularization. See for example the pc function in regularizedvangenuchten.hh. There, the function VanGenuchten::dpc_dswe is called to determine the correct slope of the regularized curve. If

[DuMuX] Fluidmatrix interactionlaws - partial derivatives

2019-06-17 Thread Felix Feldmann
Dear DuMux developer, Looking at the fluidmatrixinteractionlaws, I do find the implementation of several partial derivatives. For example, in case of the BrooksCorey model: *The derivative of the relative permeability for the non-wetting phase in regard to the wetting saturation