| 实验中实现"无限展长后掠翼"流场的方法研究 |
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| 引用本文： | 左岁寒,杨永,李栋.实验中实现"无限展长后掠翼"流场的方法研究[J].空气动力学学报,2009,27(5). |
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| 作者姓名： | 左岁寒 杨永 李栋 |
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| 作者单位： | 西北工业大学,翼型叶栅国家重点实验室,陕西,西安,710072 |
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| 基金项目： | 西北工业大学科技创新基金重点项目“后掠机翼的附面层流动稳定性及层流控制”资助 |
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| 摘 要： | 在风洞实验中,为了获得一个近似无限展长后掠翼的三维流场实验条件,必须采用特殊的整流措施,修正洞壁对流场的干扰。对于小展弦比模型的实验,可以通过在两侧洞壁附加衬垫来修正洞壁干扰。本文基于CFD技术,研究了采用无限展长后掠翼空间流线拟合的方法设计洞壁衬垫。数值模拟结果表明,采用流线拟合设计的衬垫能够有效地修正风洞侧壁对流场展向分布的影响,得到近似无限展长后掠翼的流场。
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| 关 键 词： | 无限展长后掠翼 风洞实验 CFD技术 |
Application of CFD method to achieve the fluid field of an "Infinite Swept Wing" in wind tunnel |
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| ZUO Sui-han,YANG Yong,LI Dong.Application of CFD method to achieve the fluid field of an "Infinite Swept Wing" in wind tunnel[J].Acta Aerodynamica Sinica,2009,27(5). |
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| Authors: | ZUO Sui-han YANG Yong LI Dong |
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| Institution: | National Key Laboratory of Aerodynamic Design and Research;Northwestern Polytechnical University;Xi'an 710072;China |
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| Abstract: | In order to achieve the fluid field of an "Infinite Swept Wing" in a wind tunnel,wall-liners formed from the inviscid streamlines of an infinite swept wing are designed to correct the side wall influence of the wind tunnel.According to CFD results,in a relatively large range in span direction,the flow around the wind tunnel test model is nearly the same as the flow around an infinite swept wing,even with a small aspect ratio. |
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| Keywords: | infinite swept wing wind tunnel testing CFD method |
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