source in k-w model
 

I have to add source in SST k-omeca model but it is very difficult. Where can I find the code of SST k-w model in fluent 6.0 ( C programming code) ? I don't know, how to code dk/dx, dk/dy, dk/dz and dw/dx ,dw/dy dw/dz. Another suspectation is the code; Strainrate_Mag(c,t) and Roatational_rate_Mag(c,t); Fluent said error on them.

Thank You.