Aerodynamic optimization design of blended winglets for HALE UAVs

ZHAO Jiaxiang; BAO Xiaoxiang; WANG Zonghui; LUO Yang

doi:10.7638/kqdlxxb-2025.0075

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Aerodynamic optimization design of blended winglets for HALE UAVs

更新时间：2026-05-28

- Aerodynamic optimization design of blended winglets for HALE UAVs
- Vol. 43, Issue 11, Pages: 120-129(2025)
- 作者机构：
  
  彩虹无人机科技有限公司无人机总体设计部,北京,100074
- 作者简介：
- 基金信息：
- DOI：10.7638/kqdlxxb-2025.0075
  CLC： V224;V211.3
- Published：2025
- 稿件说明：
移动端阅览
赵佳祥, 包晓翔, 王宗辉, 等. 高空长航时无人机融合式翼梢小翼气动优化设计[J]. 空气动力学学报, 2025, 43(11): 120−129.

ZHAO Jiaxiang, BAO Xiaoxiang, WANG Zonghui, et al. Aerodynamic optimization design of blended winglets for HALE UAVs[J]. 2025, 43(11): 120-129.
赵佳祥, 包晓翔, 王宗辉, 等. 高空长航时无人机融合式翼梢小翼气动优化设计[J]. 空气动力学学报, 2025, 43(11): 120−129. DOI： 10.7638/kqdlxxb-2025.0075

ZHAO Jiaxiang, BAO Xiaoxiang, WANG Zonghui, et al. Aerodynamic optimization design of blended winglets for HALE UAVs[J]. 2025, 43(11): 120-129. DOI： 10.7638/kqdlxxb-2025.0075.

摘要

针对高空长航时无人机气动效率提升的工程需求，本文以大展弦比无人机为研究对象，开展融合式翼梢小翼气动优化设计。通过构建基于代理模型优化设计和CFD计算方法的设计体系，建立以全机诱导阻力最小作为目标的设计优化函数，重点分析翼梢小翼展长、上倾角、后掠角等关键气动外形参数对机翼压力梯度分布和涡系结构的影响。研究结果表明，优化后的翼梢小翼构型使全机升阻比提高9%左右，显著提升了无人机的气动性能与飞行效率。本文提出的融合式翼梢小翼设计方法和参数影响规律，为大展弦比无人机翼梢小翼设计提供了一条兼顾工程可行性和气动性能提升的优化路径，对提升飞行器的飞行性能具有重要参考价值。

Abstract

To address the engineering requirements for improving the aerodynamic efficiency of medium to high altitude long-endurance UAVs

this paper takes a high-aspect-ratio UAV as the research object and conducts aerodynamic optimization design of blended winglets. By establishing a design system combining surrogate-based optimization and CFD computational methods

an optimization function aiming at minimizing total induced drag was developed. The study focuses on analyzing the influence of key aerodynamic parameters (winglet span length

height

and sweep angle) on wing pressure distribution and vortex structure. Results show that the optimized winglet configuration improves the lift-to-drag ratio by 9%

significantly enhancing UAV flight performance. The proposed blended winglet design methodology and parameter influence patterns provide an optimization approach balancing engineering feasibility and aerodynamic improvement for high-aspect-ratio UAVs

offering valuable references for enhancing aircraft flight performance.

关键词

Keywords

references

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