[thedal]

Originally Posted by FMDenaro

The cell Re number seems adequate, what about the inflow velocity?

https://www.dropbox.com/s/s5wherzj06...ntour.jpg?dl=0

Above is the instantaneous velocity contour.

The inlet conditions:
v = 0.001460735 m/s for air properties. Re 100

[FMDenaro]

Originally Posted by thedal

https://www.dropbox.com/s/s5wherzj06...ntour.jpg?dl=0

Above is the instantaneous velocity contour.

The inlet conditions:
v = 0.001460735 m/s for air properties. Re 100

Your assumption is of a constant inflow velocity? Try to add a noise perturbation along the transversal direction with small amplitude. Due to the continuity equation this will produce a small a du/dx component

[thedal]

Originally Posted by FMDenaro

Your assumption is of a constant inflow velocity? Try to add a noise perturbation along the transversal direction with small amplitude. Due to the continuity equation this will produce a small a du/dx component

Yes, Constant inlet velocity.
Can you tell me How should it be given?
So,is the problem now, a large du/dx component?