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Distance from the bottom, m

FIGURE 7.8 Influence of turbulence model on predicted results. (a) U velocity at x = 0.5 m/s, (b) Turbulent kinetic energy at x = 0.5 m.

Distance from the bottom, m

FIGURE 7.8 Influence of turbulence model on predicted results. (a) U velocity at x = 0.5 m/s, (b) Turbulent kinetic energy at x = 0.5 m.

The position of the interface between phases is inferred from the values of marker function. The discretized form of this equation relates the value of F at the new time level with its previous time-level value and to the fluxes of F through the cell faces. Approximations used in calculating these cell fluxes may lead to smearing of the fluid-fluid interface, which has to be minimized during numerical simulations. Several

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