计算物理 ›› 1997, Vol. 14 ›› Issue (S1): 493-495.

• 论文 • 上一篇    下一篇

先进双发民用飞机跨音速绕流数值模拟

鄂秦1, 李杰1, 李凤蔚1, 刘积仑2, 于建中2   

  1. 1. 西北工业大学飞机工程系, 西安 710072;
    2. 中国航空工业总公司民用飞机总体设计部, 北京 100012
  • 收稿日期:1996-12-10 修回日期:1997-05-04 出版日期:1997-12-25 发布日期:1997-12-25
  • 基金资助:
    航空科学基金资助项目

NUMERICAL SIMULATION OF TRANSONIC FLOW OVER AN ADVANCED TWIN ENGINE TRANSPORT AIRCRAFT

E Qin1, Li Jie1, Li Fengwei1, Liu Jilun2, Yu Jianzhong2   

  1. Department of Aircraft Engineering Northwestern polytechnical University, Xi'an 710072
  • Received:1996-12-10 Revised:1997-05-04 Online:1997-12-25 Published:1997-12-25

摘要: 采用求解椭圆型和抛物型偏微分方程的方法及多块网格技术,生成机翼/机身/短舱/挂架复杂组合体外形的贴体及与边界正交的计算网格。应用有限体积法高效求解欧拉方程,模拟先进双发民用飞机的跨音速绕流,并计入机翼边界层的粘性效应,获得存在短舱、挂架干扰的翼身组合体气动特性。计算表明,短舱、挂架对超临界机翼的气动特性有显著的影响。计算结果与实验模型的机翼表面压力分布(测量值)符合良好

关键词: 翼身组合体/短舱/挂架干扰, 网格生成, 跨音速流

Abstract: A body-fitted orthogonal grid around complex configurations including wing,body,pylon and nacelle has been suc-cessfully generated by applying the multi-block grid technique and the method of solving elliptic and parabolic partial differential e-quations.The transonic flow field and aerodynamic characteristics of the advanced twin engine transport aircraft are also simulated numerically by using finite volume methods to solve the Euler equations with high efficiency,and the viscous effect of wing bound-ary layer is considered.Results of the calculation show that pylon and nacelle have significant effect on the supercritical wing aerody-namic characteristics.the numerical results are in good agreement with the experimental wing surface pressure distribution data.

Key words: wing/body/pylon/nacelle interference, grid generation, transonic flow

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