[CFDave_]

Hi all,


While using buoyantSimpleFoam in an backwards u like shape i am getting a strange pressure field and no outflow. I guess it must be becouse of the boundary conditions...



the boundary conditions are:
__________U ________P_________ ____p_rgh _________T

Inlet ______fV______ ___calculated ___fFPresuure_____ fV
__________uni(-0.8 0 0) _____________gradient 0 _____uni 343.15
_________________________________value uni 1e5

walls _______no slip _____calculated ___fFPresure _______zG
__________________________________gradient 0
_________________________________value uni 1e5

0utlet ______inletOutlet__ _calculated____ fixedValue_____ inletOutlet
________inletValue uni (0 0 0)_ _________uniform 1e5_____iV uni 343.15
__________value uni (0 0 0) __________________________v uni 343.15



Im greatfull for any help.

[aero_head]

Hello David,

Could you please clarify what you are asking?

Are you asking why the high pressure is occurring, or what boundary condition is causing this?

[CFDave_]

Hi Kira,

I am asking both, and most of all, how to fix it.
Thanks,

David

[CFDave_]

Hi,

I found a solution, in witchthe flow was perfect eventaugh ithink there would be a nicer solution. I put the gravity to 0.