基于虚拟现实技术的气动优化  

Aerodynamic Optimization Based on Virtual Reality Technology

作　　者：张凯 汪明生 ZHANG Kai;WANG Ming sheng(Jiangsu Province Key Laboratory of Aerospace Power Systems,College of Energy and Dynamics Nanjing Universityof Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学能源与动力学院江苏省航空动力系统重点实验室,江苏南京210016

出　　处：《航空计算技术》2018年第3期103-106,110,共5页Aeronautical Computing Technique

摘　　要：为提高气动设计优化过程的效率,提出了一种将计算流体力学(CFD)与虚拟现实(VR)技术相结合的气动优化改型的新方法,将原始模型流场数据导入VR环境中进行流场的可视化分析。根据分析结果对原始模型进行交互式优化改型,再按照变形函数以及限定准则实现新模型的网格自动生成,最后自动重启CFD计算。以一个二元喷管的改型优化对方法进行了验证,优化后的喷管性能得到了显著提高,表明方法能够简便快速地开展气动优化改型。In order to improve the efficiency of the aerodynamic design optimization process,a new method for aerodynamic optimization and remodeling by combine computational fluid dynamics（ CFD） with virtual reality（ VR） technology is proposed. The original model flow field is first introduced into the VR environment for visual analysis. According to the analysis results,the original model is modified interactively in the VR environment,and then the grid is automatically generated according to the deformation constraint function and the limit criterion. Finally,the CFD calculation can be restarted automatically. This method is validated by a two-dimensional convergent-divergent（ 2 DCD） nozzle. The performance of the optimized nozzle is improved remarkable,which indicates that the method can be carry out aerodynamic optimization and modification quickly and easily.

关 键 词：CFD VR环境 流场 优化 可视化 气动特性 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]