Research and teaching focus
Our research and teaching area is closed-loop flow control for transport systems. Focus is placed on:
- Mathematical theory of turbulence control
We have recently developed closures for the first and second statistical flow moments including nonlinear effects of control laws. Some people would call this attractor control. This closure (finite-time thermodynamics) comprises reduced-order modelling, nonlinear dynamics and statistical physics and yields known and new energy-based control laws. We are working towards a strategy for model-based manipulation of broad-band turbulence dynamics, i.e. tickeling the whole normal and inverse cascades towards the desired changes. - Experimental demonstrators of closed-loop turbulence control
While enjoying a large spectrum of mathematical and physical theories, our ultimate pleasure comes from a control strategy working successfully in experiment. Current projects include bluff bodies for drag reduction, wings for lift increase, combuster mixing enhancement and jet noise reduction.
Management at TU Berlin
I head the group "Reduced-Order Modelling for Flow Control" at the School V "Transport and Machine Systems" of the Berlin Institute of Technology and am responsible for projects at the Collaborate Research Center (Sfb 557) "Control of Complex Turbulent Shear Flows", at the Research Center (Transferbereich SFB557 - Rolls Royce Deutschland) "Smart Active Control of for Turbomachinery Blades" and at the DFG-CNRS research group "Noise generation in turbulent flows".