Simulating Fish Motion through a Diagonal Reversible Turbine

Utilization of unharnessed hydro-power necessitates designing fish-friendly hydraulic machinery. Towards this effort, the present work investigates various methods for tracking fish motion, ranging from particle to accurate, but computationally expensive, body methods, such as immersed boundaries and overset meshes. Moreover, a novel uncoupled 6-Degree Freedom technique is proposed, based on an approximated pressure field around tracked interest, using steady-state flow data, including collision detection walls. The proposed method shows promising results in terms accuracy, being comparable more expensive fully coupled at tiny fraction execution time. new reveals location fish–blade impact, well statistics forces, shear that passing subjected to, both normal reverse operation turbine. low computational cost renders it attractive optimization studies.