398 citations · 498 across the 6 of their papers we have counts for
7 papers
Mean flow data assimilation based on physics-informed neural networks
Jakob G. R. von Saldern, Johann Moritz Reumschüssel, Thomas L. Kaiser +2
Physics-informed neural networks (PINNs) can be used to solve partial differential equations (PDEs) and identify hidden variables by incorporating the governing equations into neur…
Stochastic modelling of a noise driven global instability in a turbulent swirling jet
Moritz Sieber, C. Oliver Paschereit, Kilian Oberleithner
A method is developed to estimate the properties of a global hydrodynamic instability in turbulent flows from measurement data of the limit-cycle oscillations. For this purpose, th…
Anchoring of Turbulent Premixed Hydrogen/Air Flames at Externally Heated Walls
S. Klukas, M. Sieber, M. Giglmaier +3
A joint experimental and numerical investigation of turbulent flame front anchoring at externally heated walls is presented. The phenomenon is examined for lean hydrogen/air mixtur…
On the nature of spectral proper orthogonal decomposition and related modal decompositions
Moritz Sieber, C. Oliver Paschereit, Kilian Oberleithner
The spectral proper orthogonal decomposition (SPOD) is a newly introduced extension of snapshot POD that recently gained attention but also brought up controversial issues. Within…
Transient evolution of the global mode in turbulent swirling jets: experiments and modal stability analysis
Lothar Rukes, Moritz Sieber, Oliver Paschereit +1
Modal linear stability analysis has proven very successful in the analysis of coherent structures of turbulent flows. Formally, it describes the evolution of a disturbance in the l…
The impact of heating the breakdown bubble on the global mode of a swirling jet: Experiments and linear stability analysis
Lothar Rukes, Moritz Sieber, Oliver Paschereit +1
This study investigates the dynamics of non-isothermal swirling jets undergoing vortex breakdown, with an emphasis on helical coherent structures. It is proposed that the dominant…