Hello,

I'm now trying to modify my cartesian FVM Navier Stokes code to solve flow around an airfoil. I'm aware that I can either solve in the physical space ie generate structured grids and solve using interpolation or I can do coordinate transformation on my existing equation.

Anyone care to comment which is a more preferred mtd, in terms of speed and ease of programming? Or it's simply a matter of choice?

Moreover, there is the possibility that the code will be extending to 3D. Btw, I'm using a fractional step mtd to solve the NS eqns.

Thanks!

Hi..I have done flow simulations over an airfoil using the finite volume method with co-ordinate transformations.The limitation of this is that the grids are stuctured. In problems like backward facing step and airfoils with flaps, one needs to go for a multi block approach. This renders the programming even more complicated. I'm trying to shift to the physical domain formulation. I think both the methods are equally difficult ( or easy) to program. A good deal of your time, however, will be spent in the grid generation part. Hope this will help you make a decision.