results.report.surface_integrals. does not return a numeric value

[boninial-bh]

Hello everybody,

calculating some values using <solver_session>.results.report.surface_integrals.area_weighted_avg or any other surface_integrals methods, the result cannot be store in a variable, but it is printed in a Fluent console output.

As example, executing the following line
mass_flow = session.results.report.surface_integrals.mass_flow_rate(surface_names = ["inlet"])
mass_flow return a Boolean 'False'.

I don't know if it should be considered as a bug or not, for sure it would certainly be a very useful feature for post processing and manipulating data.

What do you think about? Am I missing something?

I am on Fluent 24R1, Python 3.13.0 and pyfluent 0.29.

Thank you in advance

[ansjschuetz]

Hi there,
I believe this is in the works (not sure which release, may already be available in 2024 R1 or 2025 R1).
Meanwhile, maybe a Report Definition helps?

[boninial-bh]

Hi @ansjschuetz,
thank you very much for your reply.

I am pretty sure that "surface integral" calculation does not work on 2025R1, for sure it does not work in 2024R1.
However I am going ahead with Report Definition that it seems to work fine.

[Gezelligheid0]

这个代码是在fluent窗口中输出这个量，并不会将量传导给python，可以试一试reduction函数