基于通用型线和网格重构的风力机翼型设计研究

摘要/Abstract

摘要： 先进翼型开发是发展先进风力机要解决的关键问题之一，而先进翼型集成表达和精确流场分析耦合求解是其核心。现有翼型表达大都基于控制点和初始成熟翼型，设计空间小因而不利于选出高性能翼型。本文基于Joukowski保角变换通用翼型型线表征形式，编程集成ICEM和FLUENT完成翼型生成、大变形网格重构、边界条件生成和流场解算，采用改进遗传算法进行高升阻比风力机翼型多学科联合设计。结果表明本平台设计的翼型在设计、非设计工况下以及主要攻角范围内有较高升力系数和升阻比。该型线集成表达和流场计算多学科设计方法，也为类似气动优化设计提供参考。

关键词: 风力机, 翼型型线, 参数化表达, CFD, 耦合设计

Abstract: The design theory of airfoils is one of the key factors for advanced wind turbines. The coupling solution of parametric expression and accurate flow analysis for airfoil is the core of this method. Most of the representations do not have a large enough domain to select the optimal airfoil, as they depend on several control points and initial airfoils. Based on the parametric profiles representation, originated from Joukowski conformal transformation, improved Genetic Algorithm was utilized in this design codes to obtain airfoils with high lift-to-drag ratio. ICEM and FLUENT were coupled to generate airfoils, reconstitute mesh, set boundary conditions and calculate aerodynamic performances. Results show that the new airfoil has good characteristics on-design and off-design operation conditions, high lift coefficient and lift-to-drag ratio at main range of attack angles. This coupling method of parametric representation and CFD simulation can be applied in other similar multidisciplinary design.

Key words: wind turbine, airfoil profile, parametric representation, CFD, integration design

孙振业陈进谢翌蒋传鸿. 基于通用型线和网格重构的风力机翼型设计研究[J]. .

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