A numerical approach for active fish behaviour modelling with a view toward hydropower plant assessment

Powalla, Dennis; Hoerner, Stefan; Cleynen, Olivier; Thévenin, Dominique

doi:10.1016/j.renene.2022.02.064

Cited by 8 publications

(2 citation statements)

References 19 publications

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“…This type of device is suited for combinations of modest flow rates (in the order of 1 m 3 s −1 ) and modest hydraulic head (in the order of 1 m). Recent research interest in this type of device has focused on their geometry [17,18] and their compatibility with fish river migration [19].…”

Section: Operation Of a Water Vortex Power Plantmentioning

confidence: 99%

“…As part of the same Fluss-Strom research project, a series of numerical investigations of the Dresden WVPP installation have been carried out at the University of Magdeburg [24,[26][27][28]. The main focus of those investigations is the device's compatibility with fish migration, with further work currently underway in the laboratory to develop increasingly capable fish behavior models using these simulations [19], but a secondary objective, of concern in the present work, is the quantification of its hydropower potential.…”

Section: Full Flow Simulations and Their Limitationsmentioning

confidence: 99%

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An Efficient Method for Computing the Power Potential of Bypass Hydropower Installations

et al. 2022

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Small-scale hydropower installations make possible a transition towards decentralized electrical power production with very low ecological footprint. However, the prediction of their power potential is difficult, because the incoming flow velocity and the inlet and outlet water heights are often outside of the control of the operator. This leads to a need for a method capable of calculating an installation’s power potential and efficiency rapidly, in order to cover for many possible load cases. In this article, the use of a previously-published theoretical framework is demonstrated with the case of a mid-scale hydropower device, a 26 m long water vortex power plant. It is shown that a simplified CFD simulation with a single output (the mass flow rate) is sufficient to obtain values for the two coefficients in the model. Once this is done, it becomes possible to evaluate the device’s real-life performance, benchmarking it against reference values anchored in physical principles. The method can be used to provide design guidance and rapidly compare different load cases, providing answers that are not easily obtained using intuition or even experiments. These results are obtained for a computing cost several orders of magnitude smaller than those associated with a full description of the flow using CFD methods.

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Section: Operation Of a Water Vortex Power Plantmentioning

confidence: 99%

Section: Full Flow Simulations and Their Limitationsmentioning

confidence: 99%

An Efficient Method for Computing the Power Potential of Bypass Hydropower Installations

et al. 2022

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An Experimental Approach for the Quantitative Assessment of Downstream Swimming Fish Behavior

Roth,

Wagner,

Roessger

et al. 2024

River Research & Apps

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Behavior of fish influences the mortality risk during turbine and pump passages. Knowledge about species‐specific behavior and its triggers is necessary for improving numerical models and the development of autonomous sensor probes to estimate fish mortality in turbines and pumps. A primary objective of the RETERO project is the study of fish behavior in hydraulic conditions similar to turbine and pump intakes in controlled conditions. For this purpose, an experimental conduit was constructed at the Hubert‐Engels Laboratory of the TUD Dresden University of Technology (Germany) equipped with a 3D camera infrared tracking system. The conduit was designed to model hydraulic conditions typical for turbine and pump intakes. In the experimental setup, the effects of flow velocities exceeding the maximum swim speed of fish, as well as spatial velocity gradients and illumination conditions on the fish behavior are studied. The data from brown trout (Salmo trutta) allow for an analysis of how these fish react to flow accelerations and velocities surpassing their sprint speed, using quantitative metrics for movement and activity. An initial evaluation of these experiments highlights the potential of this approach for further research.

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An efficient fish migration modeling method integrating the random forest and Eulerian–Lagrangian–agent method for vertical slot fishways

Wang,

Qie,

et al. 2023

Ecological Engineering

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A numerical approach for active fish behaviour modelling with a view toward hydropower plant assessment

Cited by 8 publications

References 19 publications

An Efficient Method for Computing the Power Potential of Bypass Hydropower Installations

An Efficient Method for Computing the Power Potential of Bypass Hydropower Installations

An Experimental Approach for the Quantitative Assessment of Downstream Swimming Fish Behavior

An efficient fish migration modeling method integrating the random forest and Eulerian–Lagrangian–agent method for vertical slot fishways

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