Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hydraulic performance of fish guidance structures with curved bars – Part 2: flow fields
The current geometric designs of fish guidance structures with vertical bars for run-of-river hydropower plants result in high head losses and asymmetric turbine admission flow. To address these issues, we develop innovative curved bar designs and experimentally investigate different rack configurations with curved bars in a laboratory flume. The present paper (Part II) focuses on the hydraulic performance of the novel curved bar designs with regard to flow fields, while the companion paper (Part I) reports the results on the head losses. The detailed flow fields obtained by 3D velocity measurements show that the curved bars promote flow conditions favourable for both fish guidance and turbine operation. The flow straightening effect of the curved bars leads to quasi-symmetrical turbine admission flow and reduced head losses. The findings are discussed with regard to fish protection and guidance, and optimal engineering application.
Hydraulic performance of fish guidance structures with curved bars – Part 2: flow fields
The current geometric designs of fish guidance structures with vertical bars for run-of-river hydropower plants result in high head losses and asymmetric turbine admission flow. To address these issues, we develop innovative curved bar designs and experimentally investigate different rack configurations with curved bars in a laboratory flume. The present paper (Part II) focuses on the hydraulic performance of the novel curved bar designs with regard to flow fields, while the companion paper (Part I) reports the results on the head losses. The detailed flow fields obtained by 3D velocity measurements show that the curved bars promote flow conditions favourable for both fish guidance and turbine operation. The flow straightening effect of the curved bars leads to quasi-symmetrical turbine admission flow and reduced head losses. The findings are discussed with regard to fish protection and guidance, and optimal engineering application.
Hydraulic performance of fish guidance structures with curved bars – Part 2: flow fields
Beck, Claudia (Autor:in) / Albayrak, Ismail (Autor:in) / Meister, Julian (Autor:in) / Boes, Robert M. (Autor:in)
Journal of Hydraulic Research ; 58 ; 819-830
18.09.2020
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Hydraulic performance of fish guidance structures with curved bars – Part 1: head loss assessment
| Taylor & Francis Verlag | 2020
An experimental investigation on fish guidance structures with horizontal bars
| Taylor & Francis Verlag | 2020
Lateral vibrations of plane curved bars
| Engineering Index Backfile | 1968