[Anne Lincke]

Dear Foamers,

I hope this question doesn't already exist in the forum.
I would like to calculate an average value which should be evaluated over different patches.
Is it possible to do this with swak4foam?

Furthermore I would like to compute the difference on each patch to this (global) average value.

So far I am able to evaluate the expressions seperately, i.e. I am computing the average value on patch1, compute the difference of my variable (temperature) to this value on patch 1, and I am doing the same for the other patches.

It would be great if I could compute an expression like this

gAv= \sum_{Outlet j} \sum{i \in Outlet_j} T_i A_i /A(Outlet j)

and compute the difference at each patch seperately

\sum_{i \in Outlet j} (T_i A_i - gAv)

I hope that this is understandable.

Thank you very much in advance for an answer or sharing your experiences.

Kind Regards
Anne