| 机翼及振动襟翼的非定常气动力计算 |
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| 引用本文： | 袁礼,吕志咏,吴建民.机翼及振动襟翼的非定常气动力计算[J].航空学报,1990,11(9):515-520. |
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| 作者姓名： | 袁礼 吕志咏 吴建民 |
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| 作者单位： | 北京航空航天大学
(袁礼，吕志咏)，田纳西大学空间研究院(吴建民) |
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| 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
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| 关 键 词： | 不可压缩流 非定常流 分离流 数值计算 |
CALCULATION OF UNSTEADY AERODYNAMIC LOADS ON WINGS WITH AN OSCILLATORY LEADING EDGE FLAP |
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| Beijing Universiiy of Aeronautics and AstronauticsYuan Li and Lu Zhiyong The University of Tennessee Space InstituteJ.M.WU.CALCULATION OF UNSTEADY AERODYNAMIC LOADS ON WINGS WITH AN OSCILLATORY LEADING EDGE FLAP[J].Acta Aeronautica et Astronautica Sinica,1990,11(9):515-520. |
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| Authors: | Beijing Universiiy of Aeronautics and AstronauticsYuan Li and Lu Zhiyong The University of Tennessee Space InstituteJMWU |
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| Institution: | Beijing Universiiy of Aeronautics and AstronauticsYuan Li and Lu Zhiyong The University of Tennessee Space InstituteJ.M.WU |
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| 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. |
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| Keywords: | incompressible flow unsteady flow separation flow nu-merical calculation |
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