Student practical training / Bachelor theses / Master theses / Diploma theses / Student Assistant

Bubbly flows are commonly encountered in process and power industry. CFD has becoming a popular tool for studying such kind of flow configurations. The department of Computational Fluid Dynamics at HZDR has yearlong experience in modelling and simulation of bubbly flow. Need of closures as well as their insufficiency is a known issue in the Eulerian modelling of multiphase flow. To avoid uncertainties and inconvenience brought by arbitrary adjustment of models or model constants, a baseline model with a unified set of closures has been recently proposed for further development and evaluation of the models. It has been tested for a broad range of flow configurations flows in the commercial CFD code ANSYS CFX. With consideration of the recent achievements in OpenFOAM, it is intended to extend the validation in OpenFOAM.

Main tasks:

• Create a database and an overview of the test cases
• Prepare and run the test cases in OpenFOAM
• Analyse simulation results
• Extend the database by finding new suitable cases in the literature

• Basic knowledge of fluid dynamics, numerical algorithm and CFD
• Systematic way of working
• Good C++ and other programming skills
• Good English in writing and reading
• Experience with OpenFOAM is an advantage

• Duration: 4-6 months
• Begin: from now on