22 citations · 28 across the 2 of their papers we have counts for
5 papers · 1 filter
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…
Helical vortices generated by flapping wings of bumblebees
T. Engels, D. Kolomenskiy, K. Schneider +3
High resolution direct numerical simulations of rotating and flapping bumblebee wings are presented and their aerodynamics is studied focusing on the role of leading edge vortices…
Numerical simulation of vortex-induced drag of elastic swimmer models
T. Engels, D. Kolomenskiy, K. Schneider +1
We present numerical simulations of simplified models for swimming organisms or robots, using chordwise flexible elastic plates. We focus on the tip vortices originating from three…
On the origin of impinging tones at low supersonic flow
Robert Wilke, Jörn Sesterhenn
Impinging compressible jets may cause deafness and material fatigue due to immensely loud tonal noise. It is generally accepted that a feedback mechanism similar to the screech fee…