000K utf8 1100 $c2017 1500 ger 2050 urn:nbn:de:hbz:464-20190813-110927-8 2051 10.17185/duepublico/70374 3000 Kempf, Andreas M. 3010 Nguyen, Thuong M. 3010 Proch, Fabian 3010 Rieth, Martin 3010 Rittler, Andreas 4000 Vorhersage der Turbulenz in Reaktoren und Motoren$dHigh-Performance Computing in der Strömungssimulation [Kempf, Andreas M.] 4209 Die möglichst akkurate Vorhersage des Strömungsverhaltens von Fluiden ist nach wie vor eine der größten Herausforderungen der Ingenieurwissenschaften. Hier setzt die Arbeitsgruppe von Andreas Kempf an. 4209 The accurate prediction of fluid flows is still one of the most challenging engineering problems. This is due to the turbulent nature of fluid flows that can only be resolved by numerical simulations for small and simplified problem sizes, even with the massive computational resources that are available today. When chemical reactions and combustion processes are involved, the computational costs become even larger due to the stiff and non-linear interaction between turbulence and chemistry. Therefore, reduction techniques have been developed in the past, namely the Reynolds averaged Navier-Stokes (RANS) and the large-eddy simulation technique (LES). The latter has the potential to describe the turbulent combustion process more precisely, but still requires models for the unresolved turbulent scales. These models are developed in the group of Prof. Kempf at the University of Duisburg- Essen, where a broad range of applications is covered. Examples are the combustion of coal, the synthesis of nano-particles in flames, and the combustion processes in internal combustion engines. To perform the required simulations on the largest supercomputers in the world, the group has developed its own inhouse code that is suitable for massively parallel simulations. 4950 https://doi.org/10.17185/duepublico/70374$xR$3Volltext$534 4950 https://nbn-resolving.org/urn:nbn:de:hbz:464-20190813-110927-8$xR$3Volltext$534 4961 https://duepublico2.uni-due.de/receive/duepublico_mods_00070374 5051 620