[mykkujinu2201]

Hi, everyone.

I have a question about pisoFoam.

I know for steadystate, simpleFoam is adequate but what if I wanna find steady state solution using pisoFoam?

Currently, I'm working on MHD solver. I found some code on the internet but it is based on PISO Foam.

I set steadyState at fvScheme but it only made errors.

Few steps and stopped.

So, I though it is maybe because of PISO algorithms. So, I checked pisoFoam at Steady state and it showed same error.

How can I get stedaystate solution from pisoFoam?

[FerdiFuchs]

pisoFoam is not able to give you a steady state solution.
only if your problem itself is a steady state problem, then it should be possible.

What you maybe lookin for is averaging a value over the whole domain (fieldAverage) via functionObjects-Library.
But beware, unsteady simulation and averaging is much² more time consuming then using a steady-state solver!

This is how it should look like in your controlDict for mean and prime2mean of U and p

functions
{
fieldAverage1
{
type fieldAverage;
functionObjectLibs ( "libfieldFunctionObjects.so" );
enabled true;
outputControl outputTime;

fields
(
U
{
mean on;
prime2Mean on;
base time;
}

p
{
mean on;
prime2Mean on;
base time;
}
);
}
}