I just read the answer from this question and have a question please:
What I read: Computational Fluid Dynamics (CFD) refers to the use of the numerical techniques to solve fluid dynamical problems. When I say 'numerical techniques', I am referring to a very broad range of techniques, including, but not limited to, Finite Difference Methods, Finite Element Methods, Finite Volume Methods, Polynomial Fitting, Spectral Methods, Boundary Element Methods and so on
Original question link: What is the difference between FEA and CFD?
My question: how do you know which numerical technique you’re using when you run a CFD simulation? What determines this?