K. Bauer
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View article: Particle image velocimetry of the flow field inside in-axis and off-axis stretched liquid bridges
Particle image velocimetry of the flow field inside in-axis and off-axis stretched liquid bridges Open
We present a novel experimental technique for investigating the internal flow field of liquid bridges under controlled stretching conditions. The key innovation of our setup is embedding the liquid bridge, which is held by two cylindrical …
View article: Deterministic periodic structures in a model of the human airways
Deterministic periodic structures in a model of the human airways Open
Normal breathing induces significant variations in Reynolds numbers throughout the human airways, resulting in distinct flow regimes. However, the onset of instabilities and the development of flow structures in this context are not yet fu…
View article: Reactive Cleaning and Active Filtration in Continuous Steel Casting
Reactive Cleaning and Active Filtration in Continuous Steel Casting Open
Basic fluid dynamic processes of melt filtration have been investigated in order to increase the performance and efficiency of filtration systems in steelmaking, especially for continuous steel casting. Numerical simulations have been perf…
View article: Non-invasive calibration for volumetric flow measurements in confined spaces
Non-invasive calibration for volumetric flow measurements in confined spaces Open
The calibration of a multi-camera system is a crucial step of volumetric flow measurements with photogrammetric methods. Conventional calibration methods are based on recording hardware targets, which are placed in the cameras fields of vi…
View article: 10.1063/5.0124944.4
10.1063/5.0124944.4 Open
Aerosol droplets made from respiratory liquid are of fundamental importance for airborne transmission of several virus-based diseases, such as COVID-19. While the transmission route in the air has been intensively studied in the last two y…
View article: Toward unraveling the mechanisms of aerosol generation during phonation
Toward unraveling the mechanisms of aerosol generation during phonation Open
Aerosol droplets made from respiratory liquid are of fundamental importance for airborne transmission of several virus-based diseases, such as COVID-19. While the transmission route in the air has been intensively studied in the last two y…
View article: Non-Invasive Laser-Cross Calibration For Volumetric Flow Measurements In Closed Channels
Non-Invasive Laser-Cross Calibration For Volumetric Flow Measurements In Closed Channels Open
The calibration of a multi-camera system is a crucial step of a 3D particle tracking velocimetry (3D-PTV) measurement and other optical velocimetry techniques, which are based on multi-camera setups. Conventional calibration methods for mu…
View article: How Safe is Singing Under Pandemic Conditions? - CO<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.svg"><mml:msub><mml:mrow/><mml:mn>2</mml:mn></mml:msub></mml:math>-Measurements as Simple Method for Risk Estimation During Choir Rehearsals
How Safe is Singing Under Pandemic Conditions? - CO-Measurements as Simple Method for Risk Estimation During Choir Rehearsals Open
The evaluated relations allow to calculate safe singing times for a defined number of singers and size of the room until a critical threshold of 800 ppm is reached. Furthermore, in order to monitor the actual CO2 concentration during choir…
View article: Anesthetic Considerations for an Adult Patient with Freeman-Sheldon Syndrome Undergoing Open Heart Surgery
Anesthetic Considerations for an Adult Patient with Freeman-Sheldon Syndrome Undergoing Open Heart Surgery Open
Freeman-Sheldon syndrome (FSS) or “whistling face” syndrome is a rare congenital disorder complicated by characteristic facial deformities and muscular contractures. We report on a 64-year-old male patient presenting for surgical replaceme…