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GRK 1529:  Mathematical Fluid Dynamics

Subject Area Mathematics
Term from 2009 to 2018
Project identifier Deutsche Forschungsgemeinschaft (DFG) - Project number 69014896
 
Final Report Year 2018

Final Report Abstract

In modern mathematical fluid dynamics, fundamental well-posedness questions for viscous and inviscid fluids as well as more applied topics such as vorticity behavior, boundary layers and free boundary value problems for Newtonian, complex as well as for geophysical fluids play a dominant role. The rigorous mathematical treatment of the underlying structures requires novel concepts and methods from various disciplines in mathematics ranging from modeling, analysis and stochastics over numerics, optimization and inverse problems up to the theory of computability and complexity. The IRTG 1529 aimed to examine the mathematical structures of the underlying equations and to apply the results to various models describing e.g. geophysical flows, fluid mixtures, hydrodynamic limits, and free or moving boundary value problems for complex fluids. Major contributions to these problems are due to the principal investigators from Waseda University, University of Tokyo and TU Darmstadt. Students with a thorough background in at least one of the fields of analysis, stochastics, modeling, complexity and computablity theory, numerics, sceintific computation or optimization received an interdisciplinary education in key areas of mathematical fluid dynamics, enabling them to successfully pursue research on problems, which without our common study program and without the cooperation with our Japanese partners would have been much more difficult or even impossible to handle. The yearlong interdisciplinary course, and later on special courses and seminars taught jointly by our German-Japanese team, provided students with one common scientific language in fluid dynamics. This broad but nevertheless focused education was needed to successfully treat our scientific projects. The research of our students was guided by an advisor and co-advisors in Darmstadt and Tokyo. Students from Darmstadt were requested to spend at least 6 months in Tokyo working there with their coadvisor. Due to this international component, the scientific visibility of the PhDs was certainly a high one. IRTG 1529 was embedded in a very active and well established research environment in Darmstadt and its counterparts in Tokyo. Our extensive conference and guest programs exposed our students to latest research results and gave them the opportunity to interact with leading experts already at an early stage of their projects. Special courses or tutorials were often embedded into workshops or conferences organized by IRTG 1529. The combiniation between tutorials and the presentation of prevailing research results within workshops was very sucessful and ensured that almost all of our doctoral students completed their PhD within 3 years. After a thesis written by an IRTG student was submitted to the Department of Mathematics at TU Darmstadt, the thesis committee needed to require at least one official report on this thesis by the Japanese co-advisor of this student. His judgement including his grade were taken into account with equal weight as the other reports. The scientific output of all projects includes in total 410 publications in refereed journals, in particular 287 publications, often in excellent journals, authored or coauthored by students or postdocs inside IRTG 1529 funded by DFG and JSPS and 73 joint German-Japanese publications, also often in excellent journals, authored or coauthored by students, postdocs or professors inside IRTG 1529 and funded by DFG or JSPS.

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