RBF_TFI结构动网格技术在风洞静气动弹性修正中的应用

孙岩; 邓小刚; 王运涛; 王光学

doi:10.6052/j.issn.1000-4750.2013.04.0354

RBF_TFI结构动网格技术在风洞静气动弹性修正中的应用

孙岩^1,,
邓小刚^{1, 2},
王运涛¹,
王光学^{1, 3}

1.
中国空气动力研究与发展中心空气动力学国家重点实验室,四川,绵阳 621000;
2.
国防科学技术大学计算机学院,湖南,长沙 410073;
3.
国防科学技术大学航天科学与工程学院,湖南,长沙 410073

基金项目: 国家863项目(2012AA051304); 国家自然科学基金项目(11372337)

详细信息

作者简介:
邓小刚(1960-),男,四川人,教授,博士,博导,主要从事计算流体力学方法研究(E-mail:xgdeng@skla.cardc.cn); 王运涛(1968-),男,辽宁人,研究员,博士,博导,主要从事计算流体力学应用研究(E-mail:wytwrt@sina.com); 王光学(1976-),男,重庆人,副研究员,博士生,主要从事湍流模型及大规模并行计算研究(E-mail:wgx111@sina.com).

通讯作者:
孙岩(1986-),男,安徽人,助理研究员,博士生,主要从事计算流体力学研究(E-mail:supersunyan@163.com).

中图分类号: V211.3
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- 文章访问数: 289
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出版历程
- 收稿日期: 2013-04-17
- 修回日期: 2013-11-06
- 刊出日期: 2014-10-24

APPLICATION OF STRUCTURAL DYNAMIC GRID METHOD BASED ON RBF_TFI ON WIND TUNNEL STATIC AERO-ELASTIC MODIFICATION

1.
State Key Laboratory of Aerodynamics, China Aerodynamics Research and Development Center, Mianyang, Sichuan 621000, China;
2.
School of Computer Science, National University of Defense Technology, Changsha, Hunan 410073, China;
3.
College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, Hunan 410073, China

摘要

摘要: 面向风洞模型静气动弹性修正发展了一种基于RBF(Radial Basis Function, RBF)和TFI(Transfinite Interpolation, TFI)插值方法的高效高质量结构动网格生成技术,即利用精简径向基基点后的RBF方法对结构网格块的棱线节点坐标进行更新,然后通过TFI方法重新生成变形后的面网格、体网格。翼型旋转变形动网格实例说明该方法可以生成高质量的变形网格。结合该动网格方法和风洞实验模型变形数据开展的F6翼身组合体模型静气动弹性修正计算,结果表明,模型变形对气动力系数的影响量远超风洞实验允许的误差极限,开展风洞静气动弹性修正对于提高风洞实验数据准度具有重要的工程价值。
- 径向基函数 /
- 超限插值 /
- 结构动网格 /
- 风洞 /
- 静气动弹性修正
Abstract: A high quality and efficient structural dynamic grid method based on the radial basis function (RBF) and the transfinite interpolation (TFI) was presented for static aeroelastic modification of wind tunnel models. First, a RBF method in which center points were reduced was used to update vertex coordinates on edges of structural grid blocks, and then the TFI method was adopted to generate the deformed surface grids and volume grids. A dynamic grid example of airfoil rotation demonstrates that the dynamic grid method can generate high quality deformed grids. The static aeroelastic modification of an F6 wing-body model was investigated based on the dynamic grid method and model deformation data in wind tunnels. The modification results show that the maximal coefficient variation induced by model deformation is far beyond the error limit of wind tunnel experimental data, and the static aeroelastic modification has an important practical value on improving data accuracy in wind tunnel experiments.
- radial basis function /
- transfinite interpolation /
- structural dynamic grid /
- wind tunnel /
- static aeroelastic modification

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参考文献(16)

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文章访问数: 289
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RBF_TFI结构动网格技术在风洞静气动弹性修正中的应用

通讯作者: 孙岩(1986-),男,安徽人,助理研究员,博士生,主要从事计算流体力学研究(E-mail:supersunyan@163.com).

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出版历程

APPLICATION OF STRUCTURAL DYNAMIC GRID METHOD BASED ON RBF_TFI ON WIND TUNNEL STATIC AERO-ELASTIC MODIFICATION

计量

出版历程

目录

通讯作者:
孙岩(1986-),男,安徽人,助理研究员,博士生,主要从事计算流体力学研究(E-mail:supersunyan@163.com).