**5. Conclusions**

A numerical model was developed to study alumina inclusion motion behavior in a continuous casting mold. Initially, we investigated the inclusion motion behavior in a continuous casting mold using a two-dimensional CFD model. The inclusion motion characteristic was studied with different parameters, such as the input temperature of molten steel in the mold and the size of the inclusion particles. Secondly, we focused on inclusion motion under the influence of interfacial tension. The effect of surfactant concentration (sulfur in this work) on the motion of alumina inclusions was studied. The following are the main conclusions obtained from this research work:


**Author Contributions:** Conceptualization, M.I.H.S. and A.A.; methodology, A.A.; software, L.A. and A.A.; formal analysis, K.A., I.A.A. and L.A.; writing—original draft preparation, M.I.H.S. and A.A.; writing—review and editing, K.A. and I.A.A. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research received no external funding.

**Institutional Review Board Statement:** Not applicable.

**Informed Consent Statement:** Not applicable.

**Data Availability Statement:** Available on request.

**Acknowledgments:** The authors would like to thank Deanship of scientific research in King Saud University (Riyadh, Saudi Arabia) for funding and supporting this research through the initiative of DSR Graduate Students Research Support (GSR).

**Conflicts of Interest:** The authors declare no conflict of interest.
