What are some of the CFD methods?

Some of the discretization methods being used in Computational Fluid Mechanics (CFD)
are:
Finite volume method: The finite volume method (FVM) is a common approach used in CFD
codes, as it has an advantage in memory usage and solution speed, especially for large
problems, high Reynolds number turbulent flows, and source term dominated flows (like
combustion). In the finite volume method, the governing partial differential equations
(typically the Navier-Stokes equations, the mass and energy conservation equations, and
the turbulence equations) are recast in a conservative form, and then solved over discrete
control volumes. This discretization guarantees the conservation of fluxes through a
particular control volume. The finite volume equation yields governing equations in the form,