Aerodynamic Analyses of Airfoil Configurations of Biplane Type Supersonic Transport
Aerodynamic Analyses of Airfoil Configurations of Biplane Type Supersonic Transport
复制标题
双翼型超音速运输机翼型结构的气动分析
DOI：
10.1299/kikaib.72.2132
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
K. Nakahashi
中科院分区：
文献类型：
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作者：
D. Maruyama;K. Matsushima;K. Nakahashi
在超音速飞行中，飞机会产生强烈的音爆和波阻，并伴有冲击波。低噪声、高效率的飞机是实现下一代超音速运输机的必然要求。这两个目标很有可能使用Busemann双平面的概念来实现。基于这一概念，本文基于计算流体动力学（CFD）方法对超音速飞行的双翼布局气动设计进行了研究。为了集中研究双翼机布局周围的激波特性，进行了特别适合于波阻分析的无粘流（欧拉）分析。本文的目的是研究布斯曼双翼机的特性，并在布斯曼双翼机的基础上论证具有更好气动性能的双翼机新布局。气动设计是使用最近实施的迭代逆设计方法进行的。这是一种由给定的目标压力分布确定几何形状的方法。我们期望，在给定升力条件下，反设计方法可以被证明是一种非常合适的工具，可以用来寻找一种使波阻最小的双翼构型。采用反设计方法，得到了改进的双翼机翼型
In supersonic flight, airplanes cause strong sonic booms and wave drags accompanied by shock waves. It is necessary that airplanes have low noises and high efficiencies to realize next generation supersonic transports. It has high possibility that these two objectives can be achieved using a concept of Busemann Biplane. Motivated by the concept, aerodynamic design of biplane configuration in supersonic flight is discussed based on Computational Fluid Dynamics (CFD). In order to focus on the shock wave characteristics around a biplane configuration, inviscid flow (Euler) analyses are performed, which is particularly suitable for wave drag analyses. The purpose of this paper is to examine characteristics of Busemann Biplane and to demonstrate new biplane configurations which have better aerodynamic performance based on Busemann Biplane. The aerodynamic design is performed using an iterative inverse design method that has been recently implemented. This is the method that geometries are detemined by given target pressure distributions. We expect that the inverse design method may prove to be a highly appropriate tool in finding a biplane configuration to achieve minimum wave drag under a given lift condition. By the use of the inverse design method an improved airfoil shape for the biplane has been obtained