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基于三维重建的飞机气动特性快速评估

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为了快速确定目标飞机的气动特性,提出一种基于三维重建的高效数值计算方法.三维重建综合正交投影视图的信息,提取特征点线,采用NURBS方法构建曲面,将实体飞机模型数字化.气动特性快速评估基于Euler方程,结合GPU并行技术,可显著提升计算效率,通过开展亚跨超等不同速域的标模计算,验证了方法的准确性.针对某三翼面布局的飞机案例,开展了逆向重构和气动特性分析,结果表明:三维重建的效果较好,数值分析的效率较高,验证了方法具有较好的工程实用性.
Rapid Evaluation of Aircraft Aerodynamic Characteristics Based on 3D Reconstruction
In order to quickly determine the aerodynamic characteristics of the target aircraft,an efficient numerical analysis method based on 3D reconstruction technology is proposed.3D reconstruction in-tegrates the information of the three sided drawing extracts feature points and lines,and uses NURBS method to construct the surface.The rapid evaluation of aerodynamic characteristics is based on Euler e-quations,combined with GPU parallel technology,which can greatly improve computational efficiency.The accuracy of the numerical method is verified by the standard mode from subsonic to supersonic.Based on a certain triplane,reverse reconstruction and aerodynamic characteristics analysis were carried out.The results showed that the 3D reconstruction effect was good,and the numerical analysis method was effi-cient,which verified the good engineering practicality of the rapid analysis system established in this pa-per.

3D reconstructionreverse designnumerical calculationaerodynamic characteristicsrapid e-valuation

刘冠冕

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中航通飞华南飞机工业有限公司,广东珠海 519000

三维重建 逆向设计 数值计算 气动特性 快速评估

2024

航空计算技术
中国航空工业西安航空计算技术研究所

航空计算技术

CSTPCD
影响因子:0.316
ISSN:1671-654X
年,卷(期):2024.54(6)