DEFINE_DPM_SOURCE
 

In DP model, we use DEFINE_DPM_SOURCE macro to change mass momentun and energy source terms for continuous phase eqns.

What if i dont want to change source terms for all three equations and want to change just momentum equation source term?

Will fluent rely on my UDF to calculate mass , momentum and energy equation source terms and since I am not telling to Fluent in my UDF as how to calculate mass and energy source terms, does fluent calculate mass & energy source terms through its default code/routine ?

if yes does this mean that fluent will run its default code as well as my UDF (in series ,i guess) for calculating all three source terms.

thanks for your views and suggestions kulwinder