In mist filtration, fiber-based coalescers are an established form of filtering droplets contained in mist. The filtration process can be divided into different process steps, describing the impact of the droplets on fibers, the formation of fluid structures and the liquid transport. An essential mechanism of fluid formation is the coalescence of smaller droplets into larger droplets - hence the name coalescing filter. In order to investigate mechanisms inside depth filters on a microscopic level, investigations are often reduced to single fibers. Therefore, a single fibre was placed inside a flow channel for experimental analysis.

In the context of this thesis, the flow within the flow channel is to be simulated. The focus of the study is on analysing potential vortices within the flow and proposing improvements to the flow channel geometry. Furthermore, the flow around the fiber in the flow channel and around the fiber with a droplet sitting on it is to be investigated. The results obtained from the simulations will be validated through experimental studies using mist and literature values.

What I can offer you:

• I maintain an intensive mentoring relationship with my students with regular appointments (if requested) and I’m always available to support with problems
• I give my students the freedom to contribute their own ideas to the final project
• The thesis is your work and not mine, which is why I prefer to be your advisor and not to interfere too much

Your tasks include:

• Depending on the specific topic CAD modelling of 3D-printed parts for the test rig
• Developing an understanding for computational fluid dynamics
• Creation and tracking of a project plan for your thesis

What should you bring to the job:

• Having fun to try and learn new things
• Ability to communicate
• Goal-oriented working
• Basic knowledge of computational-fluid-dynamics is a plus

Contact information:
Alexander Schwarzwälder, M.Sc.
E-Mail: alexander.schwarzwaelder∂kit.edu
Tel.: +49 721 608-46573
Straße am Forum 8
Geb. 30.70, Raum 109
76131 Karlsruhe