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An experimental study on fish-friendly trashracks – Part 2. Angled trashracks

Raynal, Sylvain and Chatellier, Ludovic and Courret, Dominique and Larinier, Michel and David, Laurent An experimental study on fish-friendly trashracks – Part 2. Angled trashracks. (2013) Journal of Hydraulic Research , 51 (1). 67-75. ISSN 0022-1686

(Document in English)

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Official URL: http://dx.doi.org/10.1080/00221686.2012.753647


Experimental results for fish-friendly trashracks placed in an open water channel are presented. Model trashracks with different bar shapes, spacing and angles were tested. The numerous configurations provided results on head losses and on changes in velocity along the rack for a large range of situations, including fish-friendly trashracks. Previous head-loss equations found in the literature were applied to these configurations and were compared with measurements. A new head-loss equation is proposed that takes into account the effect of the different tested parameters. Velocity measurements provided new results and answers concerning downstream-migration aspects such as admissible approach velocities and guidance efficiency as a function of the trashrack angle.

Item Type:Article
Additional Information:Thanks to Taylor & Francis editor. The original publication is available at http://www.tandfonline.com
HAL Id:hal-00968554
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > ISAE-ENSMA Ecole Nationale Supérieure de Mécanique et d'Aérotechnique (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Université de Poitiers (FRANCE)
Laboratory name:
Deposited On:01 Apr 2014 09:20

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