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- grid generated turbulence 格栅生成湍流
- Selecting the suitable turbulence model, good grid generation and rationalconvergence index are critical to the preciseness of the numerical calculation. 选择合适的模型方程,正确划分空间网格、时间步长以及合理的收敛判据的选取,对计算结果的正确性具有重要影响。
- Mixing and igniting gasoline and oxygen in an engine generates turbulence. 在引擎内混合汽油与氧气然后点火,会产生紊流。
- Second, the research on the grid generation based on the body-fitted coordinate (BFC) system has been carried out. 在直角坐标网格生成的研究基础上,开展了适体坐标系(Body-Fitted Coordinates, BFC)下的网格生成技术的研究。
- A grid generation platform is provided in subsonic,transonic and supersonic CFD software platform. 在亚跨超CFD软件平台中,提供了一个网格生成平台。
- Based on the developed algorithm of grid generation, a 3-D orthogonal grid generation program and a BFC grid generation program are developed. 在网格生成算法的研究基础上,开发了直角坐标网格生成程序和BFC网格生成程序。
- The grid generation and simulation methods on Armour Piercing Fin Stabilized Discarding Sabot (APFSDS) are introduced in this paper. 介绍 APFSDS及弹托干扰流场数值模拟中的网格生成方法及其应用 .
- A multiblock structured grid generation system for complex practical aircrafts is presented and applied in the grid generation of a twin tail fighter. 以某型双立尾战斗机为例,给出了实际复杂型号飞行器结构网格生成的一种分块方案及实现过程。
- A multiblock grid generation technique is described including interface grid generation technique and volume grid generation method. 给出多部件组合体分块网格生在的一种方案及实践,包括交界面网格生成技术、空间网格生成方法及质量控制。
- Secondly, for the purpose of grid generation of complicated boundary flow field, the parabolic-elliptic differential equation method of grid generation is programmed. 其次,基于抛物化椭圆型微分方程网格生成方法,建立了能处理复杂边界流场的网格生成程序;
- It is univer-sal for the grid spacing and the grid generation of arbitrary geometrical shape and theorthogonality can be controlled easily and conveniently. 此外,本文还对网格正交性和疏密分布之间的关系进行了探讨,给出了影响网格正交性的因素和改进方法。
- This thesis concentrates on the applications of CFD.Techniques of grid generation were studied in this paper, including overset grid and one to one patched-grid. 本文立足于应用,主要简单地研究了多种多块网格生成技术,包括嵌套网格生成技术和分区对接网格生成技术。
- The existence of splitter blade makes it difficult to generate a single grid in the entire flow field.For this reason, the multi-block patched grid generation technique is used. 由于分流叶片的存在,使得很难在流动区域内生成一体化网格,因此该文应用了多块分区搭接网格技术。
- This hatred was generated by racial prejudice. 这种仇恨是由种族偏见引起的。
- On the 3D unstructured tetrahedron grids generated by Gambit 2.0, the high-precision FVM with TVD schemes is applied to simulate the APFSDS sabots separating and discarding flow field, and results that accord with the laboratorial photos are obtained. 利用Gambit 2.;0生成三维四面体非结构网格,建立三维高精度有限体积TVD格式,通过计算平头正圆柱超音速绕流流场,验证这种三维格式的高分辨率性。 并将之应用在尾翼稳定脱壳穿甲弹弹托分离流场的数值模拟中,得到了与实验照片比较吻合的计算结果。
- The proposed quasi three-dimensional numerical model in conjunction with the dynamic block-structured grid generation method is applied successfully in the studies on the VIV and FSI problem of the submarine free-span pipelines. 本文发展的准三维数值模型与新的动态块结构数值网格技术相结合,被成功应用于海底管线管跨结构涡致耦合振动问题的研究。
- It is indicated that the grids generated by the proposed method are simple,high quality and suitable for different building shapes,and the results of numerical simulation agree well those of the wind tunnel test. 网格剖分和数值模拟结果表明,采用本文方法生成的网格格式简单,网格质量高,适应性强,适用于多种体型建筑物的模拟计算,并且风场模拟结果与风洞试验结果有较好的吻合。
- A simple dynamic grid generation method is introduced by weighted method to colligate the merits of the rigid dynamic grid generation method and the trans-infinite interpolation method. 通过引入一种简便易行的加权函数来综合刚性动网格生成技术和超限插值生成动网格这两种方法的优点,发展了一种计算量小、比较实用的加权动网格生成技术。
- We experienced some slight turbulence flying over the Atlantic. 我们飞越大西洋时,遇到一点不稳定的气流。
- Suddenly she was scared to death of clear air turbulence. 她突然之间被晴空乱流吓死了。