ultra low re number
 

hi every one
i want to simulate some problems in ultra low re number on airfoil!
in some case i have sepration and others don't.
reynolds is about 2000 and i heard that ansys fluent could not simulate this !
is this right?if not what should i do?which method and sheme should i chose?
and if ansys fluent could not do this what should i do?
i red some article that they did this in ultra low Re number with ins2d code but i could not reach that code?
please help me to find my answer

sorry for weak english
thank you all