Bionic humpback whale fin-shaped tail water pipe structure design method based on multi-objective optimization
By designing a biomimetic humpback whale fin-shaped tailrace tube and combining it with a multi-objective optimization method, the problem of substandard performance in traditional turbine tailrace tube designs was solved, the tailrace tube structure was optimized, and the efficiency and stability of the turbine were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BAOZHUSI HYDROPOWER PLANT OF HUADIAN SICHUAN POWER GENERATION CO LTD
- Filing Date
- 2026-05-28
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional turbine draft tube design methods are based on empirical formulas and theoretical calculations, which make it difficult to accurately consider the complexity and variability of the actual flow field, resulting in substandard performance indicators and failing to draw on the excellent fluid structure characteristics in nature to improve performance.
A biomimetic humpback whale tail fin structure design method based on multi-objective optimization is adopted. By obtaining initial structural parameters and combining the morphological characteristics of the anterior nodules of the humpback whale flipper, a biomimetic control point sequence with wave-shaped curvature is generated. A three-dimensional lofted surface is reconstructed to build a biomimetic three-dimensional geometric model. Fluid dynamics simulation calculations and iterative optimization are then performed.
It improved the wall pressure distribution and outlet velocity uniformity of the tailrace pipe, thereby enhancing the overall efficiency and stability of the turbine.
Smart Images
Figure CN122413616A_ABST