Air conditioned bedroom

[Marsang]

Hello !

I use Code-Saturne 5.0.4 from CAELinux 2018.

My problem is about inlet and conservation of mass flow.

Case description :

You can find all the usefull files here to compile the case :

https://1drv.ms/u/s!Ao3sRlH5bsVXtlkT1T3 ... U?e=Bi5X0u

Direction of flow is given by arrows. The rest is "wall" with thermal flux or not.

Velocity at the first inlet is set to 0.6 m/s for 0.18m2 with angle. An other inlet is set to -0.039 m/s (set to exterior) for 0.36m2. The third hole is directly next to the first inlet and is an outlet (0.18m2).


The air is theoretically drawn up the outlet when you calculate mass flow balance but it is not the case in the simulation with C-S ! It must be noted that simulation have already run on Ansys Fluent and the results seem correct with Fluent...

You can find the sum of all mass flow at each boundary for every iteration :

Blue = negative Z velocity
Yellow = positive Z velocity

I can't understand what is wrong...

[Yvan Fournier]

Hello,

If you are not sure of case's behavior, it is probably better to post in the "General Usage" rather than provide it in the "Flow modeling examples" section.

Regards,

Yvan