Vertically Bounded Double Diffusive Convection in the Finger Regime: Comparing No-Slip versus Free-Slip Boundary Conditions

3D volume rendering of a direct numerical simulation of double diffusive fingering convection flow (salt fingers) between two parallel plates, under the no-slip boundary condition (top) and free-slip boundary condition (bottom). The two plots share the same color map and opacity, which are both set by salinity.