Executing exclusively energy equations

To avoid the resolution of the flow field, for example into a transient case where the fluid will not change. You can insert the flag “frozenFlow” to jump this step.

SIMPLE
{
    momentumPredictor yes;
    nNonOrthogonalCorrectors 1;
    // Flag to indicate that the flow system of equations should not be evolved
    frozenFlow      true;
}

The fluid flow dynamic field (velocity and pressure) is instancaited by the first time step.