irregular grid meaning in English
不规则网格
Examples
- In this paper , by using monte carlo method with irregular grid random walk in time - space domain the problem of mass concrete transient temperature field was solved
摘要利用求偏微分方程的蒙特卡罗算法，通过在时空域中不规则网格随机游动来求解大体积混凝土不稳定温度场。 - Second , a parallel adaptive ray - casting algorithm for graphic rendering of cfi is developed . in the computational model of cfi , the line - of - sight integration is difficult to obtain for 3d complicated flow field , because curvilinear grids , multizone curvilinear grids , and other irregular grids that are commonly used in computational fluid dynamics ( cfd ) present interesting challenges , such as the complex shapes of cell regions defined by grid points ; the wide variation in the sizes of cells in different regions of the grid ; and the intersecting or overlapping nature of multi - grids . the parallel adaptive ray - casting algorithm is extremely efficient to solve these problems
并行自适应光线投射法继承了光线投射法适合于任何形式网格的优点；光线与计算网格的交点自适应地反映了原来网格点物理量的分布，能够与数值计算的精度保持一致；图像平面的自适应算法使我们不必从每一个像素发出射线，既提高了光线投射法的计算效率，同时又保证重采样后激波这样的高频信息不会损失；将并行处理技术引入计算光学流动图像生成过程，解决了大规模数值模拟结果的处理对计算速度和内存容量的需求。 - A new finite - difference method is developed for seismic modeling and reverse - time migration based upon the voronoi cell construction on irregular grids . curved velocity boundaries and irregular earth surface can be accurately represented using the irregular grid implementation . therefore the modeled and migrated results can be more accurate , and meanwhile , the efficiency is still preserved using an explicit finite - difference scheme
本文的方法可以实现任意非规则网格上的显式差分计算，因此该方法在保持了传统的矩形网格差分算法简单、高效特点的同时，又能精确地描述弯曲界面和起伏地表，提高了有限差分地震模拟和偏移结果的精度。 - Theoretical analysis and numerical experiments show that the improved nine - point scheme not only has completely overcome the second drawback mentioned above that the original nine - point scheme can not apply to the parabolic problem with diffusion coefficient drastically varying , but also has partly improved the applicability of the scheme when performed over irregular grids
( 2 )针对九点格式的上述缺点提出了改进方案。改进后的九点格式完全克服了原格式不适用于热传导系数剧烈变化的抛物问题的缺点，同时部分改善了该格式对不规则网格的适应性问题。