M
Moritz Sieber
Researcher at Technical University of Berlin
Publications - 44
Citations - 1143
Moritz Sieber is an academic researcher from Technical University of Berlin. The author has contributed to research in topics: Vortex & Turbulence. The author has an hindex of 11, co-authored 37 publications receiving 872 citations.
Papers
More filters
Journal ArticleDOI
Three-dimensional coherent structures in a swirling jet undergoing vortex breakdown: stability analysis and empirical mode construction
Kilian Oberleithner,Moritz Sieber,Christian Navid Nayeri,Christian Oliver Paschereit,Christoph Petz,Hans-Christian Hege,Bernd R. Noack,Israel Wygnanski +7 more
TL;DR: In this paper, a 3D oscillatory flow is constructed from uncorrelated 2D snapshots of particle image velocimetry data, using proper orthogonal decomposition, a phase-averaging technique and an azimuthal symmetry associated with helical structures.
Journal ArticleDOI
Spectral proper orthogonal decomposition
TL;DR: In this paper, the spectral proper orthogonal decomposition (SPOD) is proposed for spatially and temporally resolved data, which is based on the classical POD and involves an additional temporal constraint that enables a clear separation of phenomena that occur at multiple frequencies and energies.
Journal ArticleDOI
Spectral proper orthogonal decomposition
TL;DR: Spectral Proper Orthogonal Decomposition (SPOD) as discussed by the authors is based on classical POD and it can be applied to spatially and temporally resolved data, and it allows for a continuous shifting from the energetically optimal POD to the spectrally pure Fourier decomposition by changing a single parameter.
Journal ArticleDOI
Lagrangian coherent structures in the flow field of a fluidic oscillator
TL;DR: In this paper, the APS/DFD Gallery of Fluid Motion 2015 winner is associated with a video winner of a 2015 APS and DFD gallery of fluid motion award.
Journal ArticleDOI
Single- and double-helix vortex breakdown as two dominant global modes in turbulent swirling jet flow
Maarten Vanierschot,Jens S. Müller,Moritz Sieber,Mustafa Percin,Bas van Oudheusden,Kilian Oberleithner +5 more
TL;DR: In this article, the shape and dynamics of helical coherent structures found in the flow field of an annular swirling jet undergoing vortex breakdown are studied by means of time-resolved tomographic particle image velocimetry measurements.