| 翼型喷气增升效应的数值模拟 |
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| 引用本文： | 李锋,邓宁丰,周伟江,马汉东.翼型喷气增升效应的数值模拟[J].航空学报,1994,15(5):604-606. |
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| 作者姓名： | 李锋 邓宁丰 周伟江 马汉东 |
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| 作者单位： | 北京空气动力研究所,北京,100074 |
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| 基金项目： | 国家自然科学基金青年基金 |
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| 摘 要： | 应用数值方法模拟了飞行器升力面下表面喷气的增升作用。数值模拟的出发方程是Ｎ－Ｓ方程,格式为Ｂｅａｍ－Ｗａｒｍｉｎｇ格式的改进型。模拟结果表明：喷气增升主要是通过改变上、下翼面的压力分布实现的。在一定范围内升力随气流出口速度增加而加大,气流出口速度超过一定值后升力开始下降。喷口位置后移增升效果较好。单一增大气流出口压力时增升效果无明显变化。
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| 关 键 词： | 射流 增升 数值分析 |
| 收稿时间： | 1992-10-24 |
| 修稿时间： | 1993-06-05 |
THE NUMERICAL SIMULATION OF LIFT-INCREASE EFFECT ON AN AIRFOIL WITH AJET FROM ITS SUREACE |
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| Li Feng,Deng Ningfeng, Zhou Weijiang, Ma Handong.THE NUMERICAL SIMULATION OF LIFT-INCREASE EFFECT ON AN AIRFOIL WITH AJET FROM ITS SUREACE[J].Acta Aeronautica et Astronautica Sinica,1994,15(5):604-606. |
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| Authors: | Li Feng Deng Ningfeng Zhou Weijiang Ma Handong |
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| Institution: | Beijing Institute of Aerodynamics,Beijing,100074 |
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| Abstract: | The aerodynamic characteristics of an airfoil with a jet issuing from its lower surface are investigated by numerical method.The Navier-Stokes equations are solved using Beam-Warming scheme,By the numerical experiment of different jet parameters,some important characteristics are obtained.Jet can increase the lift of an。airfoil within some range of jet velocity,but beyond this velocity range the lift decrease,with jet location near to the trailing edge of the airfoil,the increase lift effect of jet is more efficient.The lift does not depend on the variation of jet pressure closely. |
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| Keywords: | jet flow lift augmentation numerical analysis |
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