[reza.mrd]

hello to all


I want to define a temperature dependence viscosity in simple foam but these errors occur



keyword nu is undefined in dictionary "/home/reza/Desktop/etCase02/constant/transportProperties"

file: /home/reza/Desktop/etCase02/constant/transportProperties from line 17 to line 64.

From function const Foam::entry& Foam::dictionary::lookupEntry(const Foam::word&, bool, bool) const
in file db/dictionary/dictionary.C at line 441.

here's my .H and .C codes and transport peroperties file

Info<< "\nStarting time loop\n" << endl;

while (simple.loop())
{
Info<< "Time = " << runTime.timeName() << nl << endl;

// --- Pressure-velocity SIMPLE corrector
{

nu=nu0*((2.414/100000)*pow(10,(247.8/(T-140))))/rho;

#include "ET.H"
#include "UEqn.H"
#include "pEqn.H"
}

laminarTransport.correct();
turbulence->correct();

runTime.write();

Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
<< " ClockTime = " << runTime.elapsedClockTime() << " s"
<< nl << endl;
}

Info<< "End\n" << endl;

return 0;
}

volScalarField nu
(
IOobject
(
"nu",
runTime.timeName(),
mesh,
IOobject::MUST_READ,
IOobject::AUTO_WRITE
),
mesh,
nu0
);

dimensionedScalar nu0
(
transportProperties.lookup("nu0")
);

transportModel Newtonian;

rho rho [1 -3 0 0 0 0 0] 1000;
nu0 nu0 [0 2 -1 0 0 0 0] 1;
Du0 Du0 [0 0 -1 0 0 0 0] 1;
E0 E0 [1 1 -3 0 0 -1 0] (1 1 1);
cp cp [0 2 -2 -1 0 0 0] 4184;
a a [1 -1 -2 -1 0 0 0] 4184000;
k k [1 1 -3 -1 0 0 0] 0.598;

hope for your answers