94 lines
2.4 KiB
C
94 lines
2.4 KiB
C
if(divDSigmaNonLinExpMethod == "standard")
|
|
{
|
|
divDSigmaNonLinExp = fvc::div
|
|
(
|
|
(
|
|
mu*
|
|
(
|
|
(gradDU & gradU.T())
|
|
+ (gradU & gradDU.T())
|
|
+ (gradDU & gradDU.T())
|
|
)
|
|
)
|
|
+ (
|
|
0.5*lambda*
|
|
tr
|
|
(
|
|
(gradDU & gradU.T())
|
|
+ (gradU & gradDU.T())
|
|
+ (gradDU & gradDU.T())
|
|
)*I
|
|
)
|
|
+ (DSigma & gradU)
|
|
+ ((sigma + DSigma) & gradDU),
|
|
"div(sigma)"
|
|
);
|
|
}
|
|
else if(divDSigmaNonLinExpMethod == "surface")
|
|
{
|
|
divDSigmaNonLinExp = fvc::div
|
|
(
|
|
mesh.magSf()*
|
|
(
|
|
(
|
|
muf*
|
|
(
|
|
n & fvc::interpolate
|
|
(
|
|
(gradU & gradDU.T())
|
|
+ (gradDU & gradU.T())
|
|
+ (gradDU & gradDU.T())
|
|
)
|
|
)
|
|
)
|
|
+ (
|
|
0.5*lambdaf*
|
|
(
|
|
n*tr
|
|
(
|
|
fvc::interpolate
|
|
(
|
|
(gradU & gradDU.T())
|
|
+ (gradDU & gradU.T())
|
|
+ (gradDU & gradDU.T())
|
|
)
|
|
)
|
|
)
|
|
)
|
|
+ (
|
|
n & fvc::interpolate
|
|
(
|
|
(DSigma & gradU)
|
|
+ ((sigma + DSigma) & gradDU)
|
|
)
|
|
)
|
|
)
|
|
);
|
|
|
|
// divDSigmaNonLinExp =
|
|
// fvc::div
|
|
// (
|
|
// ( muf * mesh.Sf()
|
|
// & fvc::interpolate(
|
|
// (gradDU & gradU.T())
|
|
// + (gradU & gradDU.T())
|
|
// + (gradDU & gradDU.T())
|
|
// ) )
|
|
// + ( lambdaf * 0.5* tr(
|
|
// fvc::interpolate(
|
|
// (gradDU & gradU.T())
|
|
// + (gradU & gradDU.T())
|
|
// + (gradDU & gradDU.T())
|
|
// )
|
|
// ) * mesh.Sf() )
|
|
// + (mesh.Sf() & fvc::interpolate( (DSigma & gradU )
|
|
// + ( (sigma + DSigma) & gradDU )
|
|
// ) )
|
|
// );
|
|
}
|
|
else
|
|
{
|
|
FatalErrorIn(args.executable())
|
|
<< "divDSigmaExp method " << divDSigmaExpMethod << " not found!"
|
|
<< abort(FatalError);
|
|
}
|