| 基于TFI的局部网格变形方法研究 |
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| 引用本文： | 杨维龙,杨永.基于TFI的局部网格变形方法研究[J].航空工程进展,2016,7(2):216-224. |
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| 作者姓名： | 杨维龙 杨永 |
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| 作者单位： | 西北工业大学,西北工业大学航空学院 |
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| 摘 要： | 本文发展了一套基于TFI（Transfinite Interpolation,超限插值法）技术的局部网格变形方法，该方法不同于以往的整体网格变形思路，将网格变形控制在有限的区域内，在保证网格质量的同时，不影响其他区域的网格，因此能够较好地配合其他动网格方法解决复杂流动问题。以带后缘襟翼的NACA0012翼型为例，对翼型俯仰振荡耦合襟翼偏转运动的动态流场进行了数值模拟，计算结果与实验值吻合良好，证明了本文发展的局部网格变形方法的可行性。
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| 关 键 词： | 襟翼偏转，网格变形，俯仰振荡，非定常流动，数值模拟 |
| 收稿时间： | 4/1/2016 12:00:00 AM |
| 修稿时间： | 2016/4/25 0:00:00 |
Investigation on local grid deformation method based TFI |
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| yangweilong and YangYong.Investigation on local grid deformation method based TFI[J].Advances in Aeronautical Science and Engineering,2016,7(2):216-224. |
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| Authors: | yangweilong and YangYong |
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| Institution: | Northwestern Polytechnical University,School of Aeronautics,Northwestern Polytechnical University |
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| Abstract: | A local grid deformation method based on TFI(Transfinite Interpolation) was developed in this paper. This method could be employed to solve complex flow with other dynamic grid methods because it is different from other global grid deformation methods while it can limit the deformation in special zone without any influence on grids of other zone. For an airfoil NACA0012 with a flap, numerical simulations of pitching oscillations were conducted, and computational results agrees well with experimental results. Then it is concluded that the method developed in this paper is variable for flow solutions of complex geometries. |
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| Keywords: | flap deflection grid deformation pitching motion unsteady flow numerical simulation |
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