Low-dimensionsal coherent-structure models of shear flows play an increasing role in industrial and academic research - in addition to experiment and simulation. Low-dimensional models provide deeper understanding of key flow processes and enable the examination and design of actuators and sensors as well as the application or improvement of control theory methods.
- Vortex filaments of a 3D vortex simulation of a circular jet. The color of the filaments represents the local vortex core size, where red (blue) indicates a thick (thin) vortex core.
- © TUB / Fachgebiet MRT
In our team , which is part of the collaborative research center "Control of complex turbulent shear flows" (Sfb 557 ), we investigate low-dimensional models based on Galerkin- and vortex methods. Our previous work includes investigations of the flow over a backward facing step, the cylinder wake and free mixing layers. Our current research activities target model-based flow control of complex configurations, as ground vehicles and high-lift wings.[M. Pastoor] 
Another direction of research is the modelling of flow control with compliant walls. As part of DFG SPP1207 , low-dimensional Galerkin- and Wavemodels are investigated (N. Losse ).