How to get probability density function (PDF) in OpenFoam?
 

such like beta distribution function or battlement PDF. If not, Is there some mathematic function to calculate integration(detail: 1-dimension, interval 0 to 1)?

Can you give more details on your question?
You need to evaluate random numbers with a certain PDF?

Thanks!
Here it is:
I need to calculate PDF such like fai(f)=(f^(v-1))*((1-f)^(w-1))/B(v,w), where B(v,w)=Integration of x from 0 to 1: {(x^(v-1))*((1-x)^(w-1))*dx}, v and w already known.

and then calculate integration of f between 0 to 1: {C_dimessionless*fai(f)df}

about calculate the fluctuation of specie's concentration.
Does someone know how to call the integration function or about this?

waiting online. :cool:

up and ask?