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physics.flu-dyn2026

A Favre-Averaging Shallow Water Framework for Aerated Flows with Friction Factor Decomposition

Matthias Kramer

Accurate prediction of flow resistance in high-Froude-number aerated flows remains challenging due to air entrainment, which causes strong spatial variability in mixture density. H…

physics.flu-dyn2026

Clustering and surface distributions of buoyant particles in open-channel flows

Ana Todorova, Robert K. Niven, Matthias Kramer

This study investigates the clustering behaviour and surface distributions of buoyant particles at the air-water interface in open-channel turbulent flow, focusing on the interplay…

physics.flu-dyn2025

On the estimation of specific interfacial areas in aerated flows

Matthias Kramer

This work provides a short clarification on the definition of specific interfacial areas in aerated flows, thereby distinguishing between the specific interfacial area related to t…

physics.flu-dyn2025

Surface detachment and bed entrainment of fluvial plastics

Matthias Kramer

Over the last decade, fluvial plastics have been identified as major threat to aquatic environments and human health. In order to develop adequate mitigation strategies for plastic…

physics.flu-dyn2024

Developing the next generation of dual-tip phase-detection probes for air-water flow experiments

Matthias Kramer

Self-aeration is a fascinating phenomenon that commonly occurs in high Froude-number flows in natural or human made environments. The most common air-water flow measurement instrum…