ANSYS FLUENT is very popular and widespread software in the field of Computational Fluid Dynamics (CFD). The finite-volume code is primarily purposed for numerical modeling of fluid flow, i.e. solving the Navier-Stokes equations and continuity equation. The software however offers much larger spectrum of models for no less important physical phenomena and processes such as turbulence models, multiphase flows including phase changes, heat transfer, chemical reactions, etc. The sofware allows the user to conveniently define complex boundary conditions, material properties dependent on other parameters, user-defined scalar transport equations, coupling of equations through source terms and so on. While a typical user often sticks to the graphica-user interface, an advanced user cannot make do without the SCHEME language for scripting and User-Defined Functions (UDF) in C for performing more complex simulations.