风场特性测量的地形模型边界过渡形式研究

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摘要针对风场特性测量的地形模型边界过渡段形式问题，参考航空飞行器过渡段设计理论，提出了适用于地形模型边界过渡的连续性设计原则，即坐标连续、一阶连续和二阶连续。根据该连续性原则，还提出了一种基于双曲正切函数曲线的过渡段形式，并通过CFD数值模拟方法，与目前广泛采用的斜坡过渡、一阶过渡（维多辛斯基曲线）进行了对比，证明了该过渡段形式的有效性和优越性。同时还针对不同长度的边界过渡段进行了研究，结果表明随着过渡段长度的增加，气流过渡效果越好。所提出的地形模型过渡段连续性设计原则和曲线形式，为地形模型边界过渡段的设计提供了理论依据和案例支持，具有重要的意义。

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	靖洪淼1
	廖海黎1
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	马存明1
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	李志国1
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关键词 ：风场特性, 地形模型, 边界过渡, 曲线形式, 二阶连续性

Abstract：Abstract:Aiming at boundary transition of a terrain model for wind field characteristics measurement, referring to the design theory of an aerospace vehicle, the continuity principle applying for the boundary transition of the terrain model was proposed, namely coordinate continuity, first-order continuity, and second-order continuity.Depending on this principle, a kind of transitional curve based on the hyperbolic tangent function was also proposed and compared with slope transition and first-order transition (vidosinsky curve) using the CFD (computational fluid dynamics) numerical simulation method.Meanwhile, the proposed boundary transition with different lengths was studied, and the results indicate that with the increase of transitional length, the air flows over the boundary transition more fluently.The continuity principle and second-order curve proposed in this paper are of great significance for the design of boundary transition of a terrain model.

Key words： wind field characteristics terrain model boundary transition curve pattern second-order continuity

收稿日期: 2019-07-17 出版日期: 2020-04-15

引用本文:

靖洪淼1，廖海黎1,2，马存明1,2，李志国1,2. 风场特性测量的地形模型边界过渡形式研究[J]. 振动与冲击, 2020, 39(8): 178-185.
JING Hongmiao1,LIAO Haili1,2,MA Cunming1,2,LI Zhiguo1,2. A study on boundary transition of a terrain model for wind field characteristics measurement. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(8): 178-185.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2020/V39/I8/178

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