| 混合动网格方法研究 |
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| 引用本文： | 吕晨光,陈龙,田书玲.混合动网格方法研究[J].航空计算技术,2012(2):81-83. |
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| 作者姓名： | 吕晨光 陈龙 田书玲 |
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| 作者单位： | [1]西安飞机工业（集团）有限责任公司技术中心,陕西西安710089 [2]南京航空航天大学空气动力学系,江苏南京210016 |
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| 摘 要： | 基于Delaunay图映射的动网格方法是一种快速、鲁棒的新型方法,其具有无需迭代、效率高、适用于任意拓扑结构的网格等特点。在分析影响Delaunay图映射方法变形能力主要因素的基础上,对Delaunay图映射方法进行了改进,通过在Delaunay图中增加辅助点,并结合弹簧原理动网格方法,消除了Delaunay图在大变形时出现交叉的问题。通过三维翼身组合体大变形算例验证了发展的混合动网格方法的可靠性和处理气弹问题时的计算效率。
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| 关 键 词： | 动态网格 弹簧原理 Delaunay图映射 气动弹性 |
Investigation of a Hybrid Dynamic Grid Method |
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| LV Chen-guang,CHEN Long,TIAN Shu-ling.Investigation of a Hybrid Dynamic Grid Method[J].Aeronautical Computer Technique,2012(2):81-83. |
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| Authors: | LV Chen-guang CHEN Long TIAN Shu-ling |
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| Institution: | 1.Research and Development Center,Xi′an Aircraft Industry(Group) Company Ltd.,AVIC,Xi′an 710089,China; 2.College of Aerodynamics,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China) |
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| Abstract: | Dynamic grid based on Delaunay map is a fast and robust grid deformation algorithm which is non-iterative,efficient,topological flexible.Based on the analysis of the primary factor effect the Delaunay map′s deform capability,an improved the Delaunay map method is present.By adding assistant points and using spring method,the intersection of Delaunay map element can be avoided.One case is used to validate the hybrid dynamic grid method.All the results show that the hybrid methods proposed in this article are robust and efficient in simulating aeroelastic problems. |
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| Keywords: | dynamic grid spring method delaunay map aeroelastic |
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