Abstract: The influence of five turbulence models on numerically simulated fluid flow in a slab continuous casting mold was investigated using EMBR (electromagnetic brake) and Fluent 6.3 software. Results were compared with data obtained from a hydraulics model experiment or from actual factory measurements. Data obtained by a standard k-Ε model or by a low-Re k-Ε model conformed to real conditions, whereas data generated by an RNG (renormalization group) k-Ε model or by an SST (shear-stress transport) k-Ε model lacked sufficient accuracy. Meniscus shapes obtained by the turbulence models were similar, but the standard k-Ε model generated values even closer to actual conditions. Required computer memory and time expense of numerical simulation by the Spalart-Allmaras model are less than that of other models and the computing efficiency of the SST k-Ε model is the lowest.