[fredo490]

Dear all,
As some of you know, OF 2.2 introduce a new system of "fvOptions" files where we can set the porosity and so on...
There is another interesting command that is "temperatureLimitsConstraint". As its name says, it is used to constraint the temperature to a minimum and maximum value.

Because I didn't find any example online, here is my file:
You have to put it into the "fvOptions" file located in system

source1
{
    type            temperatureLimitsConstraint;
    selectionMode   all;
    active          true;

        temperatureLimitsConstraintCoeffs
        {
            Tmin     220;
            Tmax     270;
        }
}

This command will bound the temperature between 220K and 270K in all the domain. It is useful in some cases if your compressible solver can't catch the value temperature value during the first iterations.

Edit: the page description come from here: http://www.openfoam.org/version2.2.0/fvOptions.php