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基于三维重建的飞机气动特性快速评估

Rapid Evaluation of Aircraft Aerodynamic Characteristics Based on 3D Reconstruction

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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.
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)