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Home _Departments _Fluid Mechanics
Fluid Mechanics
Emphasis of Research
In almost all processes in nature and technology, at least one fluid, i.e. one material component capable of flowing is available. Fluid Mechanics describes the movement of fluids as a consequence of inner and outer effects and mechanisms. Consequently, according to the famous aphorism "Ta panta rhei" assigned to the ancient Greek philosopher Heraclitus, Fluid Mechanics has cross-sectional character per se. As a result, Fluid Mechanics plays an essential role in a wide spectrum of technical fields such as

 

- energy, process, chemical and life science engineering, transport, automotive, aerospace
  and shipping technology

- material, manufacturing and medical engineering

- food, biotechnology and environmental technologies

Furthermore, Fluid Mechanics is closely interlinked to Natural Science Disciplines as transport processes in Chemistry, Physics, Biology, Geology and Astrophysics are often due to fluid convection. Obliged to the cross-sectional nature of Fluid Mechanics, LSTM aims at contributing to a better understanding and the optimization of fluid flow processes in nature and technique. In the Campus Busan LSTM is establishing a wide spectrum of research and teaching activities around its core competence areas on fluid processes in biotechnology incl. fermentation and marine biotechnology, high pressure processes, rheological and thermofluiddynamical fields, energy technology, turbo machines, aerodynamics and aeroacoustics, cooling of electronic components and automation of fluid transport.

By way of a first illustrative example: Processing of high-energy methane hydrates which is generated in the ocean at depths of 1000-2000 meter and temperatures slightly above the freezing point of water are explored by using very inadequate methodologies, so far. Methane hydrate is namely thermodynamically highly unstable. Any mechanical, fluid mechanical or thermal perturbance of the natural deposit in the sea could potentially change the solid state available into the gaseous. As a consequence, the generated gases would rise in the atmosphere and cause enormous environmental damage.

So the planned research activities are devoted to the establishment of stable scientific and technical conditions from the perspective of mass, momentum and energy exchange in the extraction of methane hydrates from the deep sea.

Further examples of research activities aims to:
Rheology, a sister discipline of Fluid Mechanics, deals with the determination of the behaviour of matter at deformation. The rheological investigations to be carried out in Busan are particularly related to high-pressure processes as available diesel fuel systems, plastics engineering, chemical engineering and biotechnology.
The importance of virtual engineering is increasing year by year. Amongst other activities LSTM has been developing a virtual design tool for turbo machines. In Busan high revolution turbo machines with speeds of up to 200,000 U / s and a focus on small and medium power machines are going to be investigated and designed for particular industrial employment. They will provide highest mass-specific power density and, at the same time, substantially higher efficiency as comparable turbo machines commercially available.
Turbulent flows can influence decisively mass and energy transport as well as the homogeneity of chemical and biochemical reactions. Such processes occur frequently in Chemical Engineering and Biotechnology as well as in the production of pharmaceuticals, food and beverages. In this context, LSTM will develop, optimize and use novel optical measurement techniques which enable analyzing local turbulence with high spatial and temporal resolution. The aim is to characterize process inhomogeneity in conclusive manner and to make the necessary measures for optimizing large-scale (bio-) chemical reactors disposable.
Aerodynamic investigations form the basis for a further broad spectrum of Fluid Mechanics issues. The planned investigations in Busan include implementation and perfusion processes as well as cooling problems in electronic components, small engines, household appliances, heaps and medical facilities.
To complete the activities of LSTM in Busan, additional investigations on the automation of technical flow fields are foreseen. From the perspective of control theory, the related processes have a high complexity, as they have a strong non-linear dynamic. Consequently, there is no closed mathematical description which could serve as a basis for a closed loop control and automation. Therefore, Novel Hybrid Methods should be established, which facilitate the management of theoretical, numerical and experiment. This way it would be possible for the first time to process local and global flow quantities to an adaptive control loop.
At the FAU Erlangen-Nuremberg LSTM consists of a staff of about 75 co-workers and more than 35 assistant students. LSTM is engaged in the Research Fields of Aerodynamics, Turbulence, Aeroacoustics, and Reactive Flows. Automation of Biotechnological and Medical Flows, Numerical Simulation, Turbo Machines, Coating Processes, Unsteady Flows, Flow Processes in Human Biology, Medical Technique and Pharmaceutical Production, High Pressure Processes, Rheology, Non-invasive and In-Situ Measuring Techniques, Fuel Cells, Cutting Technologies for Si-Chips and Transport Systems. Furthermore, LSTM is member of the Excellence Cluster Engineering of Advanced Materials and of the Erlangen Graduate School on Advanced Optical Technologies.
With respect to cooperation with industry LSTM serves as a partner of a large number of top Geman and European companies covering totally different sections in market such as Siemens, BMW, Audi, Porsche, BASF, Bayer, Bohringer, Huber, Schott, Nestle, Kraft, Vorwerk, Krüss, CD-Adapco and Schunk.

Fluid Mechanics has much to offer. LSTM at FAU Busan could assist you getting access to the high potentials to be exploited... stay curious!