| 基于网格吸附插值法的不规则尾流场构建方法 |
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| 引用本文： | 薛源,杨梓鑫,徐浩军,王国智.基于网格吸附插值法的不规则尾流场构建方法[J].系统工程与电子技术,2019,41(4):870-875. |
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| 作者姓名： | 薛源 杨梓鑫 徐浩军 王国智 |
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| 作者单位： | 1. 西北工业大学航空学院, 陕西 西安 710072;
2. 空军工程大学航空工程学院, 陕西 西安 710038 |
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| 摘 要： | 尾流模型的构建对于尾流遭遇情形下的飞行动力学研究具有重要意义。针对远距尾流的振荡发散特点结合正弦扰动特性构建尾流的长波振荡模型,分析不同幅值参数下尾流场速度参数,提出网格吸附法以解决坐标变换后排列不规则问题。通过与其他插值算法对比,结果表明网格吸附法在标点密度达到拐点的情况下插值速度最快,精度符合要求,效率最高。最后,构建了前机的不规则尾流场。
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Irregular wake field construction method based on grid adsorption interpolation |
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| XUE Yuan,YANG Zixin,XU Haojun,WANG Guozhi.Irregular wake field construction method based on grid adsorption interpolation[J].System Engineering and Electronics,2019,41(4):870-875. |
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| Authors: | XUE Yuan YANG Zixin XU Haojun WANG Guozhi |
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| Institution: | 1. Institute of Aviation, Northwest Polytechnic University, Xi’an 710072, China;;
2. Aviation Engineering Institute, Air Force Engineering University, Xi’an 710038, China; |
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| Abstract: | The construction of wake flow field model is significant for the study of flight dynamics in case of wake. By combining the divergent characteristics of the long distance wake and sinusoidal perturbation charactoristic the long wave oscillation model of the wake is contructed. Velocity parameters of wake flow field with different amplitude parameters are analyzed, and the grid adsorption method is proposed to solve the irregular problem arrayed after coordinate transformation. Compared with other dimensional interpolation algorithms, validation results show that the interpolation of grid adsorption method is fastest when the punctuation density reaches the inflection point, and the precision meet the requirements, causing the highest efficiency. In the end, the irregular wake field of the front plane is constructed. |
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