Aerodynamic design method for biomimetic tower-type wind turbine

By using a biomimetic tower design, combined with numerical simulation and experimental measurement, the seal whisker model was improved into a wind turbine tower, solving the problems of vortex-induced vibration and tower shadow effect, and improving the power output and yaw function of the wind turbine.

CN116263837BActive Publication Date: 2026-05-05YANGZHOU UNIV
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Patent Information

Application Number
CN202310248470.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-03-15
Publication Date
2026-05-05
Estimated Expiration
2043-03-15

AI Technical Summary

Technical Problem

The tower of modern large wind turbines is prone to vortex-induced vibration and tower shadow effect in wind flow, which affects the fatigue life of the blades and the output power. In addition, the wake region of the wind turbine affects the power output of downstream wind turbines.

Method used

By adopting a biomimetic tower design and combining numerical simulation and experimental measurement, the seal whisker model was modified into a wind turbine tower. Through 3D modeling, 3D printing and wind tunnel testing, the aerodynamic characteristics of different shapes and structures were studied to suppress vortex shedding and tower shadow effect and optimize the aerodynamic performance of the wind turbine.

Benefits of technology

It effectively suppresses vortex-induced vibration, reduces the aerodynamic load of the tower on the blades, improves the power output and yaw function of the wind turbine, and enhances the overall performance of the wind turbine.

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Abstract

This invention discloses an aerodynamic design method for a biomimetic tower-type wind turbine, comprising: 1) using 3D modeling software to biomimeticly model the geometric shape of the wind turbine tower and determine its dimensions; 2) employing numerical simulation to study the aerodynamic characteristics of the biomimetic tower and cylindrical tower; 3) 3D printing the tower model with uniformly distributed pressure measurement holes; 4) arranging a wind tunnel testing device; 5) using wind tunnel testing to collect data and study the aerodynamic characteristics of the biomimetic tower and cylindrical tower; 6) using 3D modeling software to model the wind turbine blades, hub, and nacelle, and applying the designed biomimetic tower combined with rotating blades to a horizontal axis wind turbine; 7) employing numerical simulation to compare the simulation results of the biomimetic tower-type wind turbine and the cylindrical tower-type wind turbine. This invention directly addresses the tower shape design, with simple and efficient optimization steps, and exhibits good drag reduction, vibration suppression, and wake improvement effects, thereby increasing the wind turbine's output power.
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