[Abdu.rahmaty]

Hello,

I need help for a problem i have with my result in Ansys Fluent 19.


Here is first my model:

model.JPG

I have to study the velocity countour around a ventilated wall. I have an initial horizontal velocity of 18 m/s on the left side of the domain but when i resolve with fluent, the velocity in the upper zone near the roof is more than 44 m/s , which is wrong i guess:

velocity countour.JPG

Here are my boundary conditions

boundary conditions.JPG

1.velocity inlet with Vmax=18 m/s or Vmin =0.1 m/s
2.pressure outlet with gauge pressure equal to 0
3.pressure outlet with gauge pressure equal to 0
4.symmetry
5. internal temperature 20 °C
for the ground : heat flux=0
for other wall condition: coupled thermal condition



Thank you in advance for your help!!!