Experimental analysis of oil flow and drag torque generation in disengaged wet clutches

L Pointner-Gabriel, E Schermer, T Schneider… - Scientific Reports, 2023 - nature.com
Fundamental knowledge of the oil flow in a disengaged wet clutch is essential for optimizing
the cooling performance and the drag losses. However, no fundamental information on the …

[HTML][HTML] Drag Losses of Wet Brakes and Clutches—A Scoping Review

L Pointner-Gabriel, K Voelkel, K Stahl - Lubricants, 2025 - mdpi.com
Wet brakes and clutches are crucial drivetrain components widely used in many sectors.
However, their drag losses can account for a considerable share of the overall drivetrain …

Experimental investigation of drag loss behavior of dip-lubricated wet clutches for building a data-driven prediction model

L Pointner-Gabriel, M Menzel, K Voelkel… - Scientific Reports, 2024 - nature.com
Fundamental knowledge of wet clutches' drag loss behavior is essential for designing low-
loss clutch systems. In contrast to the widely investigated injection lubrication, more …

[HTML][HTML] Experimental investigation of drag loss and plate separation behavior of wet clutches under external forces

L Pointner-Gabriel, S Flamm, M Menzel, K Voelkel… - Results in …, 2024 - Elsevier
Understanding the drag loss behavior of wet clutches is crucial for the development of low-
loss clutch systems. For non-horizontal installation positions and non-stationary …

Particle detection by means of neural networks and synthetic training data refinement in defocusing particle tracking velocimetry

M Dreisbach, R Leister, M Probst… - Measurement …, 2022 - iopscience.iop.org
The presented work addresses the problem of particle detection with neural networks (NNs)
in defocusing particle tracking velocimetry. A novel approach based on synthetic training …

Defocusing PTV applied to an open wet clutch: From macro to micro

R Leister, T Fuchs, J Kriegseis - Experiments in Fluids, 2023 - Springer
Defocusing particle tracking velocimetry (defocusing PTV) is applied in various levels of
magnification to investigate the flow in an open wet clutch with radial grooving. The …

On the applicability of LDV profile-sensors for periodic open wet clutch flow scenarios

R Leister, S Pasch, J Kriegseis - Experiments in Fluids, 2022 - Springer
The present experimental study revolves around the applicability of a Bragg-shifted laser
Doppler velocimetry profile sensor (LDV-PS) in use for open wet clutch flow scenarios …

Measurements in a turbulent channel flow by means of an LDV profile sensor

S Pasch, R Leister, D Gatti, R Örlü, B Frohnapfel… - Flow, Turbulence and …, 2024 - Springer
Spatially and temporally resolved velocity measurements in wall-bounded turbulent flows
remain a challenge. Contrary to classical laser Doppler velocimetry (LDV) measurements …

Wall-shear-stress measurements using volumetric µPTV

T Fuchs, M Bross, CJ Kähler - Experiments in Fluids, 2023 - Springer
Accurately determining the wall-shear-stress, τ w, experimentally is challenging due to small
spatial scales and large velocity gradients present in the near-wall region of turbulent flows …

Deep learning and hybrid approach for particle detection in defocusing particle tracking velocimetry

C Sax, M Dreisbach, R Leister… - … Science and Technology, 2023 - iopscience.iop.org
The present work aims at the improvement of particle detection in defocusing particle
tracking velocimetry (DPTV) by means of a novel hybrid approach. Two deep learning …