Particle-based evaluations of fish-friendliness in Kaplan turbine operations

29th IAHR Symposium on Hydraulic Machinery and Systems

Romero-Gomez, P.^1 ; Lang, M.^1 ; Michelcic, J.^1 ; Weissenberger, S.^1

Research and Development, ANDRITZ HYDRO GmbH., Linz

4031, Austria^1

关键词: Hydroturbines;    Migratory fishes;    Operating condition;    Operating points;    Particle-based methods;    Radial direction;    Turbine flows;    Turbine operation;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/240/4/042016/pdf
DOI  :  10.1088/1755-1315/240/4/042016

来源: IOP

【 摘 要 】

The concept of fish friendliness of hydroturbines relates to the effects of a unit design and its operating conditions on the success of migratory fish survival during passage through turbine flows. Most computer-based studies of fish friendliness approximate fish trajectories with streamlines; this work introduces a particle-based method to account for collisions on two typically interrogated structures: the stator and the runner. We implemented the method in various operating points of a Kaplan turbine simulated with computational fluid dynamics. The results indicated that only a small percentile of the particle sample collides severely with the stator (