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非结构四边形网格
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  unstructured quadrilateral mesh
     A New Unstructured Quadrilateral Mesh Generation Scheme and Applications
     一种新的非结构四边形网格生成方法及软件
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  “非结构四边形网格”译为未确定词的双语例句
     Adaptive finite volume method combined with kinetic chemical reaction model was programmed to simulate the flow field. The numerical results agree fairly well with the experimental measurements.
     发展了基于非结构四边形网格自适应有限体积程序,结合基元化学反应模型对扩张喷管中爆轰化学反应流场进行了数值模拟,模拟结果与实验照片吻合较好。
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  相似匹配句对
     Using AFS algebra and AFS structure, any human ordinary fuzzy concept can be represented.
     结构
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     The cultural structure of non-verbal symbols
     语言符号的文化结构
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     The Cultural Connotation of Non-verbal Symbols
     语言符号的文化结构
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     Compared the actuality of the structure of th
     *; 结构;
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     Parallel Unstructured Mesh Generation
     结构网格的并行生成
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An investigation of detonation wave diffraction over a divergent nozzle was carried out experimentally and numerically.The experiment was conducted in a detonation tube with double exposure holographic interferometric measurement,which offers better resolution and quantitative information as well,in comparison with conventional flow visualization such as schilieren method.Adaptive finite volume method combined with kinetic chemical reaction model was programmed to simulate the flow field.The numerical results...

An investigation of detonation wave diffraction over a divergent nozzle was carried out experimentally and numerically.The experiment was conducted in a detonation tube with double exposure holographic interferometric measurement,which offers better resolution and quantitative information as well,in comparison with conventional flow visualization such as schilieren method.Adaptive finite volume method combined with kinetic chemical reaction model was programmed to simulate the flow field.The numerical results agree fairly well with the experimental measurements.It was found that detonation diffraction has quite a lot of flow feature compared with shock wave diffraction,including the detachment of reaction front and leading shock wave and reignition phenomena.The divergent angle and initial pressure have great influence to the flow field of detonation diffraction.The lower initial pressure,the earlier the detachment of chemical reaction front and leading shock wave will happen.

结合实验和数值模拟方法,对以脉冲爆轰发动机为背景的爆轰波通过扩张喷管的流动进行了系列研究。实验采用双曝光全息干涉方法对爆轰波绕射流场进行测量,得到了比传统的纹影法更清晰和可定量化的照片。发展了基于非结构四边形网格自适应有限体积程序,结合基元化学反应模型对扩张喷管中爆轰化学反应流场进行了数值模拟,模拟结果与实验照片吻合较好。实验和数值模拟结果表明,爆轰波绕射具有许多和激波绕射不同的流场特征,其中包括二次起爆现象、化学反应面与前导激波相脱离而引起的复杂流场等,同时初始压力和扩张角度变化也对爆轰波绕射过程产生较大影响,初始压力越低,化学反应区和前导激波分离现象越明显,且前导激波的曲率越大。

A scheme for unstructured quadrilateral mesh generation based on Delaunay triangulation is presented.With a front edge definition we mark a triangle mesh in the front edge.According to triangle mesh shape and directionality two triangular meshes are merged into a quadrilateral mesh. A 100% quadrilateral mesh obtained converts a quad-dominant to an allquad mesh with mesh conversion templates.Numerical results are shown.

提出一种间接生成非结构四边形网格的方法.采用Delaunay三角形网格生成的算法生成三角形单元,在三角形单元中定义生成四边形网格的前沿,根据三角形的特点(边、角大小)以及生成四边形前沿的方向,将两个三角形合并为一个四边形单元.此方法的特点是不增加节点,仅改变点与点之间的拓扑连接,使单元基本变为四边形占优的单元.然后研究四边形占优的网格转换为100%的四边形网格的转换模版.并应用于实际物理问题.数值实验显示了该方法生成非结构四边形网格的特点.

 
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