36 citations · 103 across the 12 of their papers we have counts for
14 papers
Detection of dominant large-scale coherent structures in turbulent pipe flow
Amir Shahirpour, Christoph Egbers, Jörn Sesterhenn
Large-scale coherent structures are identified in turbulent pipe flow at by having long lifetimes, living on large scales and travelling with a certain group velocity. A…
The effect of side walls on the stability of falling films
Hammam Mohamed, Jorn Sesterhenn, Luca Biancofiore
We study the influence of side walls on the stability of falling liquid films. We combine a temporal biglobal stability analysis based on the linearized Navier-Stokes equations wit…
Coherent structure detection and the inverse cascade mechanism in two-dimensional Navier-Stokes turbulence
Jiahan Wang, Jörn Sesterhenn, Wolf-Christian Müller
Coherent structures in two-dimensional Navier-Stokes turbulence are ubiquitously observed in nature, experiments and numerical simulations. The present study conducts a comparison…
A "DIY" data acquisition system for acoustic field measurements under harsh conditions
Steffen Büchholz, Mathias Lemke, Julius Reiss +1
Monitoring active volcanos is an ongoing and important task helping to understand and predict volcanic eruptions. In recent years, analysing the acoustic properties of eruptions be…
An acoustic model of a Helmholtz resonator under a grazing turbulent boundary layer
Lewin Stein, Joern Sesterhenn
Acoustic models of resonant duct systems with turbulent flow depend on fitted constants based on expensive experimental test series. We introduce a new model of a resonant cavity,…
The impact of turbulence on flying insects in tethered and free flight: high-resolution numerical experiments
Thomas Engels, Dmitry Kolomenskiy, Kai Schneider +3
Flapping insects are remarkably agile fliers, adapted to a highly turbulent environment. We present a series of high resolution numerical simulations of a bumblebee interacting wit…