航空学报 > 1990, Vol. 11 Issue (9): 515-520

机翼及振动襟翼的非定常气动力计算

袁礼1, 吕志咏1, 吴建民2   

  1. 1. 北京航空航天大学 ;2. 田纳西大学空间研究院
  • 收稿日期:1989-03-22 修回日期:1990-02-20 出版日期:1990-09-25 发布日期:1990-09-25

CALCULATION OF UNSTEADY AERODYNAMIC LOADS ON WINGS WITH AN OSCILLATORY LEADING EDGE FLAP

Yuan Li1, Lu Zhiyong1, Wu Jianmin2   

  1. 1. Beijing Universiiy of Aeronautics and Astronautics, The University of Tennessee Space InstituteJ.M.
  • Received:1989-03-22 Revised:1990-02-20 Online:1990-09-25 Published:1990-09-25

摘要: <正> 1.引盲 研究细长翼及其前缘襟翼大幅度振动所引起的气动力,有助于了解非定常流的一些特点,对未来高机动飞机的设计和飞行控制也有重要意义。计算这种情况的气动力,因涉及大尺度非定常分离流问题,需要能模拟自由涡面变化的位流方法,如常值偶极子格网法〔‘、涡格法山。〕和混合涡法〔‘〕。这些方法及其应用还在发展中〔,,。〕。为拓展位流方法的应用范国,本文就涡格法对单、双三角翼带振动前缘襟翼的气动力进行了探讨

关键词: 不可压缩流, 非定常流, 分离流, 数值计算

Abstract: The unsteady aerodynamic loads on wings with lending edge separation in inviscid incompressible flow are calculated using vortex-lattice method. The calculated results of delta and double delta wings with oscillating L.E. flaps not only show influence upon aerodynamic response as a result of different oscillatory frequencies and hinge line swept-back angles, but also reveal the phenomena of aerodynamic lag and nonlinear interaction associated with unsteady vortex flows.

Key words: incompressible flow, unsteady flow, separation flow, nu- m erical calculation