Task

Surface tension plays a critical role in multiphase flows, particularly in processes such as fuel atomization in jet engines, where it significantly influences droplet formation and breakup. Computational Fluid Dynamics (CFD), specifically the Volume of Fluid (VOF) method, relies on accurate surface tension modeling to predict these phenomena. However, existing surface tension models often involve trade-offs between accuracy, stability, and computational efficiency.

This thesis aims to implement a new surface tension model in OpenFOAM and compare its performance with existing models. The evaluation will focus on accuracy, robustness, and computational cost under conditions relevant to atomization processes. The implementation will involve hands-on code development and C++ programming, providing the opportunity to engage directly with OpenFOAM’s source code.

Through this thesis, you may gain valuable experience in:

• Developing and implementing numerical models in OpenFOAM using C++.

• Deepening your understanding of surface tension and its impact on multiphase flow dynamics.

• Bridging theoretical fluid mechanics with practical computational skills.

As OpenFOAM is one of the most widely used CFD packages in both academia and industry, this thesis will provide a strong foundation for a career in computational fluid dynamics, particularly for those interested in method development and advanced numerical modeling.