[parvez2683]

Hi Friends,
I am trying to simulate flow over an airfoil NACA0012 with chord C=20mm. I have made the grid with 114400. But when I am trying to simulate it in Fluent First thing it gives me a warning:
The mesh contains very high aspect ratio hexahedral
or polyhedral cells.
The default algorithm used to compute the wall
distance required by the turbulence models might
produce wrong results in these cells.
Please inspect the wall distance by displaying the
contours of the 'Cell Wall Distance' at the
boundaries. If you observe any irregularities we
recommend the use of an alternative algorithm to
correct the wall distance.
Please select /solve/initialize/repair-wall-distance
using the text user interface to switch to the
alternative algorithm.

but since I am using laminar flow I discard the warning and started simualtion with left top and bottom farfield as velocity inlet and right farfield as outflow but it is giving me a reverse flow at the outflow face 4 at the very starting of the iterations only .
What should I do? I am really stucked with this problem and I soon have my defence I need to complete this asap. I can mail my case file if needed.

Thanks
PARVEZ