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Publications (6)
The Ziller River, a tributary to the Inn in Tyrol, Austria, is affected by hydropower generation. Macroinvertebrate habitat‐preferences were investigated in the field and corresponding habitat suitability curves were applied successfully to a novel integrative assessment method based on hydrodynamic modelling. Here, a reach of the Ziller River is s...
Racetrack flumes are established experimental settings in ecohydraulics and sediment studies. Their experimental results are often coupled with numerical simulations. The two-equation turbulence closures of the Reynolds-Averaged Navier-Stokes equations are applied widely in such engineering applications. They are preferred for their ease of use and...
Turbulence has a significant influence on fluvial processes. Especially in the sharp bends of geometrically complex natural streams, the interaction of turbulence and flow three-dimensionalities is considerable. Here, generation and evolution of streamwise vorticity in an open channel bend is assessed by means of term-by-term experimental investiga...
Beside the curvature-induced secondary flow in curved channels, often a counter-rotation secondary flow cell is observed near the outer bank, called outer-bank cell. In the current study, experiments were conducted for three low subcritical Froude numbers typical for natural streams that complement the Froude number range investigated in previous s...
Due to turbulence reduction to wavelike motion, curvilinear flow paths could affect turbulence damping in bends. Recently, sophisticated velocimetry equipment facilitated observation of this bend-induced phenomenon. In this paper, two consecutive 180° open channel bends (part of an elliptical fish larvae habitat flume) were investigated experimenta...