fluent超声速弹翼组合体干扰的数值模拟及气动特性分析

摘要：本文对在超声速下弹翼组合体的空气动力学特性进行了研究，并分析了单独的翼片与弹翼组合体之间的气动特性的差别，采用计算流体力学软件（CFD）fluent对弹翼组合体在超声速下的流场进行了数值模拟。本文所研究的弹体-弹翼组合体之间的气动干扰主要有两种干扰效应，弹翼对弹体的干扰和弹体对弹翼的干扰。弹翼对弹体干扰主要体现在弹翼表面的压强差会对弹体产生一个净升力和波阻力，弹体对弹翼的干扰是由于弹体的迎角会使弹翼的有效迎角增大，从而干扰弹翼的升力，阻力等等。本文在对弹翼组合体进行了数值模拟之后，与实验数据进行了比较，并对比理论结论，对超声速飞行时的气动干扰效应做出了一个简要的物理分析，并大致介绍了一下研究方法和分析方法。32301
关键词超声速弹翼组合体气动分析空气动力学 fluent
毕业论文设计说明书外文摘要
Title Numerical simulation and aerodynamic characteristics analysis of supersonic wing assembly interference
Abstract
In this paper, the aerodynamic characteristics of the wing assembly at supersonic studied and analyzed the differences between the aerodynamic characteristics of a separate wing flaps and the combination between, using computational fluid dynamics software (CFD) fluent on the wing a combination of supersonic flow field under the numerical simulation. This paper studied elastomer - aerodynamic interference between the wing assembly There are two main effects of interference, interference wing of the elastomer interference on the wing of an elastomer. Wing of the elastomer interference produced mainly in elastomer pressure difference would a net wing surface lift and wave drag, decoy body of the wing's angle of attack is due to the effective angle of attack elastomer will increase the wing large, thereby interfering with wing lift, drag, and so on. In this paper, after assembly of the wings was simulated, and the experimental data were compared and contrast theoretical conclusions, aerodynamic interference effects of supersonic flight made a brief physical analysis, and general introduction about the research methods and analysis.
Keywords supersonic wing-body combination fluent aerodynamic analysis aerodynamics
目   次
1 引言    1
1.1 课题研究的背景及意义    1
1.2 计算流体力学的发展和前景    1
1.3    国内外超声速弹翼组合体的研究现状    2
1.3.1 国外研究现状    2
1.3.2 国内研究现状    2
1.4    本文的主要内容和组织结构    3
1.4.1 论文主要研究内容    3
1.4.2 论文的组织结构    3
2 弹翼组合体模型的建立和方法研究    5
2.1 计算模型    5
2.1.1 单片弹翼的计算模型    5
2.1.2 弹翼组合体计算模型    6
2.2 网格生成技术    7
2.3 计算方法    8
2.3.1 FLUENT软件简介    8
2.3.2 边界条件    9
2.4    本章小结    9
3 超声速下单片弹翼空气动力学特性    10
3.1 引言    10
3.2 不同攻角下弹翼的流场特性分析    10
3.3 不同马赫数下的弹翼的气动特性分析    12
3.4 本章小结    13 fluent超声速弹翼组合体干扰的数值模拟及气动特性分析:http://www.751com.cn/jixie/lunwen_28814.html