I am currently working on a system composed of several measurement modules. The fluid that is water passes through each of these modules. I would like to know if it is possible to know the flow rate in several different places. In the input/output of each module for example. I've already tried the visualization plans but you can't see the flow rate, only the speed, pressure... Regarding the surface parameter, I don't have any faces to select. I had looked if it was possible to create faces just for the parameter but it didn't work.
@yoan pacquelet : concerning the example in the tutorial, there is the formula to calculate the flow except that I can't place a surface objective in the place I'm interested in (it's in the middle of a channel and I don't have a face to select).
@thomas perky: I use the flow simulation extension and not Xpress, otherwise your method is as you said "bully" but I find the right order of magnitude and the expected results.
I'm simply digging up to bring a solution to others who, like me, would come across this post today...
All you have to do is create solid "sensors". Strangely enough, it doesn't work with surfaces (as OP tried to do), you have to add solid bodies with faces where you want to take the measurements, and then exclude them from the simulation.
It's simple, it allows you to get the results directly as goals... In short, I don't understand why no one has mentioned this solution.