Dr. Bálint Kaszás

I am a postdoctoral fellow in the Institute for Mechanical Systems in the Department of Mechanical and Process Engineering at ETH Zurich, working in the group of George Haller

I attended Eötvös Loránd University in Budapest to obtain my Bachelor's and Master's degrees in physics, specializing in theoretical physics. During my undergraduate studies, I collaborated with the MTA-ELTE Theoretical Physics Research Group, then led by Prof. Tamás Tél, where I also wrote my Master's thesis under the supervision of Dr. Miklós Vincze.

I have completed my doctoral studies at ETH Zurich in 2023. The title of my dissertation was New Methods for Reduced-order Modeling and Uncertainty Quantification for Nonlinear Analysis of Fluid Flows, and it was supervised by Prof. George Haller and co-supervised by Prof. Filippo Coletti.

Current Research

Modeling the transition between exact coherent states in shear flows
The view on turbulence inspired by dynamical systems has already yielded great insight. The time evolution of a fluid flow in a certain geometry can be viewed as a trajectory in an infinite-dimensional phase space. Exact coherent states are special, simple flow fields that act as organizers for other trajectories. Our research focuses on uncovering the network of these exact coherent states through invariant manifolds of the phase space. These invariant manifolds lend themselves to a rigorous approach for reduced-order modeling.




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