Typification of vessel-induced waves and their interaction with different bank types, including management implications for river restoration projects

Liedermann, Marcel; Tritthart, Michael; Gmeiner, Philipp; Hinterleitner, Markus; Schludermann, Elisabeth; Keckeis, Hubert; Habersack, Helmut

doi:10.1007/s10750-014-1829-1

Cited by 35 publications

(35 citation statements)

References 25 publications

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“…Another notable feature was the long duration of the wave events, which is probably explainable by the reflections between the riverbanks. Eco-hydraulic investigations estimated the drift of fish larvae by the exposing of drift nets near the shore to collect specimens being swept into the current [13,14]. It was found that near-bank, shallow water habitats with inhomogeneous morphology and woody debris may provide safer conditions compared to more exposed areas with gravel bed, where displacements and drifting due to ship induced waves are more likely.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Effects of Ship Induced Waves on the Littoral Zone with Field Measurements and CFD Modeling

Fleit

Baranya

Rüther

et al. 2016

Water

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Abstract:Waves induced by ship movement might be harmful for the habitat in the littoral zone of rivers due to the temporally increasing bed shear stress, the high-energy breaking waves and the consequently related detachment of benthic animals. In order to understand the complex hydrodynamic phenomena resulting from littoral waves, we present the testing of a novel methodology that incorporates field observations and numerical tools. The study is performed at a section of the Danube River in Hungary and analyzes the influence of different ship types. The field methods consist of parallel acoustic measurements (using Acoustic Doppler Velocimetry (ADV)) conducted at the riverbed and Large Scale Particle Image Velocimetry (LSPIV) of the water surface. ADV measurements provided near-bed flow velocities based on which the wave induced currents and local bed shear stress could be estimated. The LSPIV was able to quantify the dynamics of the breaking waves along the bank. Furthermore, computational fluid dynamics (CFD) modeling was successfully applied to simulate the propagation and the breaking of littoral waves. The used techniques complement each other well and their joint application provides an adequate tool to support the improvement of riverine habitats.

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Section: Introductionmentioning

confidence: 99%

Investigation of the Effects of Ship Induced Waves on the Littoral Zone with Field Measurements and CFD Modeling

Fleit

Baranya

Rüther

et al. 2016

Water

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show abstract

“…Benthic species, living in or near the sediments, are better known than species using water superficial tensions to stay afloat (Suter 2013). Fourth, the use of an artificial beach, with different lengths and inclinations, could, for instance, reproduce in a controlled environment beach or bank erosion by waves (Lorang and Stanford 1993;Liedermann et al 2014). Fifth, studies on buoyant and sinking phytoplankton could continue with a focus on the intensity of water mixing in interaction with its timing and duration (Huisman et al 2002;Huisman et al 2004;Blottière et al 2014;Zhou et al 2015).…”

Section: Discussionmentioning

confidence: 99%

Mesocosms with wavemakers: A new device to study the effects of water mixing on lake ecology

Hulot

Rossi

Verdier

et al. 2016

Limnology & Ocean Methods

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To better understand the interaction between wind waves and the biological properties of freshwater ecosystems, it is highly desirable to reproduce coherent water motions generated by wind. This paper presents new 15 m3 mesocosms with wavemakers, also known as wave flumes, which are designed to emulate the effects of surface waves on the biological processes in shallow lakes. First, we succinctly review existing approaches to modify mixing of the water column in ecological studies: most mixing devices that have been used to date generate turbulence, but do not create the coherent water motions generated by surface waves. This justifies the development of mesocosms that seek to reproduce these coherent water motions. Tanks with wave generators are common devices in fluid mechanics, and we adapted them for aquatic ecology. Second, we describe the effects of waves on the water column, provide some theoretical background on wavemakers, and detail the choices adopted for the design of our device. Our system is able to generate waves with a wavelength of 0.1–5 m and amplitude of 1–5 cm in a 10 m long tank with a 1 m water column, which allows to choose mixing intensity from superficial to complete mixing of the water column. Experimental results show effects of mixing regime on water chemistry and plankton abundance. We finally discuss challenging research questions on the ecological role of surface waves in shallow lakes that can be addressed with mesocosms with wavemakers.

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“…De hoogte van en het type golven die door langsvarende schepen worden opgewekt zijn afhankelijk van het scheepstype, de afmetingen van het schip in verhouding tot de afmetingen van het profiel van de vaarweg, de vaarsnelheid en de afstand tussen het schip en de oever (CUR, 1999;Coops, 1999;Liedermann et al, 2014).…”

Section: Ecologische Effecten Scheepvaartunclassified

Vegetatieonderzoek en verkennend golfslagonderzoek in plasbermen langs de Leie

Kerckvoorde¹,

Geest²,

Vervaet³

et al. 2017

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Typification of vessel-induced waves and their interaction with different bank types, including management implications for river restoration projects

Cited by 35 publications

References 25 publications

Investigation of the Effects of Ship Induced Waves on the Littoral Zone with Field Measurements and CFD Modeling

Investigation of the Effects of Ship Induced Waves on the Littoral Zone with Field Measurements and CFD Modeling

Mesocosms with wavemakers: A new device to study the effects of water mixing on lake ecology

Vegetatieonderzoek en verkennend golfslagonderzoek in plasbermen langs de Leie

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