A method for modeling actuation lines of fan aerodynamic performance with unknown airfoil data

By scaling the radial dimensions and adjusting the pitch angle of the wind turbine model, and combining the actuation line method, the problem of simulating the aerodynamic performance of wind turbines under unknown airfoil data was solved. The calculation of the aerodynamic thrust and wake characteristics of the wind turbine was realized, providing theoretical support for the design of floating wind turbines.

CN117494327BActive Publication Date: 2026-06-26SHANGHAI JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI JIAOTONG UNIV
Filing Date
2023-10-10
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In the initial stage of wind turbine blade design, there is a lack of mature airfoil data, the actuation line method cannot be applied, and the overall design unit of floating wind turbine cannot obtain the geometric and aerodynamic data of the blades, resulting in the inability to simulate aerodynamic performance and wake field.

Method used

By scaling the radial dimensions and adjusting the pitch angle of publicly available standard wind turbine models, and combining the actuation line method, the aerodynamic thrust of the wind turbine under unknown airfoil data is calculated. The pitch angle is then cyclically adjusted until it matches the design value of the target wind turbine, and the aerodynamic performance and wake characteristics are analyzed.

Benefits of technology

In the absence of airfoil data, the aerodynamic thrust and wake characteristics of the wind turbine were successfully calculated, providing theoretical support for the design of floating wind turbines, taking into account the aerodynamic-hydraulic coupling response.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application belongs to the field of fan aerodynamic performance, and discloses a fan aerodynamic performance actuating line modeling method for unknown airfoil data, wherein the following steps are included: S1: obtaining prototype fan aerodynamic calculation parameters close to the rated power of a target fan; S2: performing radial size scaling on the blades of the prototype fan; S3: calculating the aerodynamic thrust of the size-scaled prototype fan; S4: adjusting the blade pitch angle of the size-scaled prototype fan; S5: calculating the aerodynamic thrust of the size-scaled prototype fan after further adjustment of the blade pitch angle; S6: cyclically repeating steps S4-S5 until the aerodynamic thrust is consistent with the design value of the target fan; and S7: calculating the aerodynamic performance and wake characteristics of the fan.
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