How to exclude UDFs and turbulence kinetic energy source terms?
 

I am simulating a project that has been done by others. But i would like to strip off the attached turbulent viscosity UDFs and turbulence kinetic energy source terms. How should i do it? I tried to reduce the number of the source term to 0 and press OK. But there is a message saying Error CAR: invalid argument [1]: wrong type [not a pair]. And the number jumps back to 1 again.

Thanks