[Talayal]

I’ve just started learning Fluent and Gambit for my school project. For our term project we have to compute 2d flow around an airfoil section. However I’m having some difficulties choosing between different ways to mesh the domain. Our teacher wants us to use quadratic (preferably square) grid. I searched for some tutorials and papers and found few ways to arrange mesh. However I could not find a way to make all grid square, because of the shape of the profile most of them used arc for inlet edge, as a result, around the foil, grid becomes rhomboid. Is there anyone who can help me with this? Also what is the disadvantage/advantage of using square or rhomboid grid?