| 多块协调变形的网格变形技术及其应用 |
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| 引用本文： | 郑赟,王彪,王静,肖大启.多块协调变形的网格变形技术及其应用[J].航空计算技术,2012(1):83-87. |
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| 作者姓名： | 郑赟 王彪 王静 肖大启 |
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| 作者单位： | 北京航空航天大学能源与动力工程学院航空发动机数值仿真研究中心,北京100191 |
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| 摘 要： | 基于多块网格协调变形的理论,提出了适用于叶轮机内流多物边界的更具一般性的网格变形技术,先获得块边界处的变形量,然后插值得到块内网格各点的变形量。通过二维振荡叶栅和带叶尖间隙的三维跨音风扇叶片的非定常绕流算例,证明网格变形技术在叶轮机气弹稳定性数值模拟中的应用是有效的,能够在保证网格高精度的条件下,提高网格变形速度。
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| 关 键 词： | 叶轮机 非定常流动 流固耦合 气动弹性 网格变形 |
Mesh Deforming Technique Based on Compatibility of Multi-block Structured Mesh Deformation and Its Application to Blade Aeroelastic Analysis in Turbomachinery |
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| ZHENG Yun,WANG Biao,WANG Jing,XIAO Da-qi.Mesh Deforming Technique Based on Compatibility of Multi-block Structured Mesh Deformation and Its Application to Blade Aeroelastic Analysis in Turbomachinery[J].Aeronautical Computer Technique,2012(1):83-87. |
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| Authors: | ZHENG Yun WANG Biao WANG Jing XIAO Da-qi |
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| Institution: | (Aeroengine Simulation and Research Center,School of Jet Proplusion,Beihang University,Beijing 100191,China) |
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| Abstract: | A mesh deformation technique is developed for blade aeroelastic analysis in turbomachinery based on the compatibility of multi-block structured mesh deformation.The deformations of block boundaries in accoundence to surface movement are determined using an exponential decay.A transfinite interpolation is employed for distributing the control points′ deflections to the fluid mesh points interior.The technique is demonstrated on a 2D cascade and a 3D transonic fan with tip leakage applications.Results show that this method offers the advantage of accuracy and efficiency. |
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| Keywords: | turbomachinery unsteady flow fluid-structure interaction aeroelasticity mesh deforming |
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