在气动力设计和计算中,面元法是主要实用计算方法之一。新近发展的第二代低阶面元法实用性强和计算精度较高。本文介绍了该面元法的理论,通过对比早期面元法,着重探讨了第二代低阶面元法的特点及其优越性。运用自行研制的计算程序,对低速动力短舱进行了计算和分析研究,结果表明与国外资料所提供的计算结果吻合得较好。 In the aerodynamic design and calculation, surface element method is one of the main practical calculation methods. The newly developed second-generation low-order surface element method has high practicability and high computational accuracy. This paper introduces the theory of this panel method. By comparing with the earlier panel method, this paper focuses on the characteristics and superiority of the second-generation lower-order panel method. The calculation and analysis of the low speed nacelles were carried out by using the self-developed calculation program. The results show that the calculation results are in good agreement with the data provided by foreign materials.