典型翼型参数化方法的翼型外形控制能力评估

现代飞行器的精细化设计需求要求翼型参数化方法具有精准的翼型外形控制能力。依据标准的风洞模型公差要求,以五个典型翼型作为测试翼型,分别对Hicks-Henne参数化方法、样条参数化方法、PARSEC参数化方法和CST翼型参数化方法的翼型外形控制能力进行评估,依据每个翼型参数化方法的评估结果并结合其固有特点进行适应性分析。结果表明:四种翼型参数化方法对翼型外形的控制能力存在较大差别,具有不同的适用范围。评估典型翼型参数化方法的所得结果可指导设计人员依据具体的设计需求选择适当的翼型参数化方法。

Geometry Control Ability Evaluation of Classical Airfoil Parametric Methods

Refinement design requirements of modern aircraft configuration require airfoil parametric methods to be of precise geometry control ability .Five representative classical airfoils are used as test airfoils and four clas-sical airfoil parametric methods’ geometry control ability is evaluated based on the standard wind tunnel model tolerance requirement .The four airfoil parametric methods are Hicks-Henne parameterization ,B-spline parame-terization ,PARSEC parameterization and CST parameterization respectively .Every parametric method’s appli-cability is analyzed based on the evaluation results and its inherent characteristics .T he evaluation results indicate that airfoil geometry control abilities are different between the parametric methods and each method has its own applicable scope .Geometry control ability evaluation of classical airfoil parametric methods can provide reference for designers to choose suitable airfoil parametric method for engineering problems .