Computational fluid dynamics simulations of water flow on a studded upstream eel pass

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dc.contributor.authorSyihab, Abu B. M. Ibnu
dc.contributor.authorVerdin, Patrick G.
dc.contributor.authorWright, Rosalind M.
dc.contributor.authorPiper, Adam T.
dc.contributor.authorRivas Casado, Monica
dc.date.accessioned2021-07-19T15:37:50Z
dc.date.available2021-07-19T15:37:50Z
dc.date.issued2021-07-19
dc.description.abstractThe European eel population has undergone a significant decline in recruitment over the last 3–4 decades. Anthropogenic riverine barriers that disrupt the eel's life cycle when migrating upstream are contributory factors in this decline. The development of eel passage facilities is one of many attempts to mitigate this problem. In upstream passes, eels rely on a substrate in the base of the pass to assist their ascent by climbing and/or swimming. This study numerically evaluates, using computational fluid dynamics, the hydrodynamic characteristics of water flow on a studded substrate, under a range of installation angles and water flowrates. To assess and predict the efficiency of the pass, simulated flow field data were used to create pass-ability maps by comparing simulated velocity data with eel swimming capabilities. An 11° installation angle with a ramp flowrate of 1.12 × 10−3 m3/s per metre width was shown to be likely most suitable for 70 mm long eels, and could be used by eels with sizes up to 150 mm. The numerical study has also shown that under specific water flowrates, installation angles of 30° or more can make the water level fluctuate and splash out of the eel pass, resulting in potential inefficiency in ramp water supply, while posing additional challenges for eels ascending the pass.en_UK
dc.identifier.citationIbnu Syihab ABM, Verdin PG, Wright RM, et al., (2021) Computational fluid dynamics simulations of water flow on a studded upstream eel pass. River Research and Applications, Volume 37, Issue 9, November 2021, pp. 1279-1293en_UK
dc.identifier.issn1535-1459
dc.identifier.urihttps://doi.org/10.1002/rra.3837
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/16896
dc.language.isoenen_UK
dc.publisherWileyen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectpass slopeen_UK
dc.subjectfish passage facilityen_UK
dc.subjectEuropean eelen_UK
dc.subjecteel pass-ability mapen_UK
dc.subjectcomputational fluid dynamicsen_UK
dc.titleComputational fluid dynamics simulations of water flow on a studded upstream eel passen_UK
dc.typeArticleen_UK

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