61 lines
1.2 KiB
C++
61 lines
1.2 KiB
C++
|
psim1 = psi;
|
||
|
|
psi = psi_tmp;
|
||
|
|
|
||
|
|
// Resolution of the linear system.
|
||
|
|
fvScalarMatrix psiEqn
|
||
|
|
(
|
||
|
|
Crel*fvm::ddt(psi)
|
||
|
|
==
|
||
|
|
fvm::laplacian(Krel, psi, "laplacian(Krel,psi)")
|
||
|
|
+ gradkz
|
||
|
|
);
|
||
|
|
psiEqn.relax();
|
||
|
|
psiEqn.solve();
|
||
|
|
|
||
|
|
// Update of the varying transport properties.
|
||
|
|
thtil = 0.5*
|
||
|
|
(
|
||
|
|
(1 + sign(psi)) + (1 - sign(psi))*
|
||
|
|
pow((1+pow(mag(alpha*psi),n)),-(1-(1/n)))
|
||
|
|
);
|
||
|
|
Krel = 0.5*
|
||
|
|
(
|
||
|
|
(1 + sign(psi))*K + (1 - sign(psi))*K*pow(thtil, 0.5)*
|
||
|
|
pow((1 - pow((1 - pow(thtil, (n/(n - 1)))),(1 - (1/n)))), 2)
|
||
|
|
);
|
||
|
|
Crel= S + 0.5*
|
||
|
|
(
|
||
|
|
(1 - sign(psi))*
|
||
|
|
(
|
||
|
|
(thetas - thetar)*(thtil - thtil_tmp)*
|
||
|
|
(
|
||
|
|
1./((usf*pos(psi - psi_tmp)*pos(psi_tmp - psi))
|
||
|
|
+ psi - psi_tmp)
|
||
|
|
)
|
||
|
|
)
|
||
|
|
);
|
||
|
|
|
||
|
|
// Update of the gravity term.
|
||
|
|
gradk = fvc::grad(Krel);
|
||
|
|
gradkz = gradk.component(2);
|
||
|
|
|
||
|
|
// Computation of the field of residuals for the exit test of
|
||
|
|
// the Picard loop.
|
||
|
|
err = psi - psim1;
|
||
|
|
|
||
|
|
// Computation of the residual for the exit test of the Picard
|
||
|
|
// loop. Note the use of gSum instead of sum.
|
||
|
|
crit = gSumMag(err)/nbMesh;
|
||
|
|
|
||
|
|
// exit test for the Picard loop.
|
||
|
|
if (crit < precPicard)
|
||
|
|
{
|
||
|
|
Info << " Erreur = " << crit
|
||
|
|
<< " Picard = " << pic
|
||
|
|
<< nl << endl;
|
||
|
|
|
||
|
|
currentPicard=pic;
|
||
|
|
|
||
|
|
break;
|
||
|
|
}
|