非结构网格 meaning in English
unstructured grid
Examples
- The results of the three dimensional simulation emphatically show flow characteristics change along the spillway width and furthermore verify that the combination of k - e turbulence model with the vof model and unstructured grid can successfully simulate complex three dimensional turbulent flow on the stepped spillway
三维计算着重体现了流场沿溢洪道宽度方向的变化规律，进一步验证了vof模型、非结构网格与卜。紊流模型相结合能够成功地模拟三维阶梯溢流坝面复杂流场。 - By use of eno interpolating polynomials on unstructured grids , a high accurate finite volume scheme has been constructed through combining the idea of constructing of high order accurate finite volume schemes on structured grids . iii ) constructing of a new kind of high order accurate conservative remapping algorithm . it is based on the technique transferring physical quantities between the two computational meshes , known as remapping
( 2 )基于非结构网格的lagrange坐标系下的有限体积格式构造：使用非结构网格下的eno插值多项式，结合结构网格高精度格式构造的思想，构造得到了非结构网格下的高精度有限体积格式。 - In spite of these advantages , we should concentrate on how to extend the representation of modes , how to apply to unstructured grids , etc . and when combining pod and saa , it is necessary to know how to represent the shape and how to control the range of seeking and iteration number
但在研究的过程中,我们发现正交分解方法也存在如下问题:如何增强基模态的表达能力,如何将该方法应用于非结构网格的计算等。在利用模拟退火算法结合解算器进行翼型反设计时,则需要考虑如何表达几何外形形状,怎样控制搜索范围以及如何减小搜索次数等实际问题。 - In this dissertation , a method to generate 2 - d unstructured grid and the finite volume arithmetic to solve two - dimensional euler equation in unstructured grid system are investigated in detail . the codes are also developed for grid generator and euler solver , and the calculation results are compared with experimental data
本文主要研究二维非结构网格的生成方法和基于非结构网格的euler方程有限体积算法；研制开发了非结构网格生成及euler方程数值算法的程序软件，并将计算结果与实验结果进行了对比分析。 - But the nnd algorithm can " t reach 2 - order precision , and the cell - centred finite volume algorithm is not suit to solve hypersonic problem . for the efficiency of the four - stage runge - kutta time - stepping scheme is low , and the robust is bad for the hypersonic problem , an implicit time - stepping scheme is adopted . this scheme can preserve the results precision and improve the computing efficiency sharply , and is an innovation for the time - stepping scheme of unstructured grid
为了解决目前传统四步龙格一库塔时间推进效率较低、计算高超声速流场时鲁棒性较差的问题，本文改进并采用了一种隐式时间推进格式，能够在保证精度要求的情况下有效的提高流场计算时的计算效率，对基于非结构网格的时间推进格式有了发展和创新。