Modeling the CO₂ Sequestration Convection Problem Using the Lattice Boltzmann Method

Figure 3

Schematic figure showing the D2Q5 and the D2Q9 lattices at the top boundary. The grey area represents the outside of the considered system. The known particle velocity distribution functions from inside the system are (𝑓₁, 𝑓₂, 𝑓₃, and 𝑓₄) for the D2Q5 and (𝑓₁, 𝑓₂, 𝑓₃, 𝑓₄, 𝑓₆, and 𝑓₇) for the D2Q9.