You'll see if you dig into it that it only does 2D. You could extend it to 3D with some serious work, and for simple geometries at low angles of attack and high Reynolds Number it will probably do fine.
But if you want better fidelity the best open-source CFD suite I'm familiar with is OpenFOAM. Unfortunately you have to have an adequate understanding of the math/physics to use that as OpenFOAM doesn't hold your hand even a little bit. There's really not much of a market at all for "casual flow modeling".
But if you want better fidelity the best open-source CFD suite I'm familiar with is OpenFOAM. Unfortunately you have to have an adequate understanding of the math/physics to use that as OpenFOAM doesn't hold your hand even a little bit. There's really not much of a market at all for "casual flow modeling".