Effects of input power and frequency on flow field in vacuum induction melting TiAl-based alloy have been investigated by simulation using finite element simulation software-ANSYS. It was found that the distribution of flow velocity was insensitive to increasing input power and frequency which only altered the values of flow velocity. It was also showed that the flow velocity significantly increased with the increment of input power at the same frequency and decreased with increasing input frequency at the same input power. With loading different input powers and frequencies, the heights of free surface profile were measured to confirm the validity of the model. A relatively good agreement was found in comparison between results from calculation and those from direct measurement.
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