Skip to Main content Skip to Navigation
Journal articles

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

Abstract : 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.
Complete list of metadatas

Cited literature [13 references]  Display  Hide  Download
Contributor : Open Archive Toulouse Archive Ouverte (oatao) <>
Submitted on : Tuesday, April 1, 2014 - 11:07:38 AM
Last modification on : Thursday, June 18, 2020 - 11:14:27 AM
Long-term archiving on: : Tuesday, July 1, 2014 - 11:11:03 AM


Files produced by the author(s)




Sylvain Raynal, Ludovic Chatellier, Dominique Courret, Michel Larinier, Laurent David. An experimental study on fish-friendly trashracks - Part 2. Angled trashracks. Journal of Hydraulic Research, Taylor & Francis, 2013, vol. 51, pp.67-75. ⟨10.1080/00221686.2012.753647⟩. ⟨hal-00968554⟩



Record views


Files downloads