Define Source UDF Problem
 

Hi,

I am developing a compressibility correction for one of the newly developed turbulence models. Right now I am trying to verify if my definition of turbulent Mach number is correct. With details aside, I am basically running a define source term with return value of 0 with bunch of UDMIs define under the define source function. My prediction was that I would be able to get the UDMI values without the correction applied( since I am adding nothing to the transport eqs, I should obtain the same results). But it just diverges after idk many iterations. I have not added anything to the original transport equation. I just defined another source term with return value of 0. So I am just lost why solution is diverging. Does anyone know any information about this?

Thank alot

Han