局部网格加密方法。
算法结合了格子方法和网格加密型高效算法的优点。
This algorithm is based on the Bisection acceleration technique.
接着,研究了基于网格加密的多分辨基函数,介绍了其构造方式。
Secondly, the multiresolution (MR) basis function based on the mesh refinement and its construction method are studied.
用矩阵理论证明了迭代的收敛性,推证了网格加密时的渐进收敛性质。
The property of convergence in iteration and the property of gradual-approach convergence are proved by matrix method.
针对跟踪塑性区交界面这一具体问题,采用了加权参数网格加密准则;
For the specific problems of tracing the interface between plastic and elastic zone, a weighted parameter mesh refinement criterion is presented.
为了与流场的各向异性相适应、减少网格点数量,提出了一种各向异性网格加密法。
In order to reduce the number of mesh points and to be compatible with the anisotropic nature of viscous flows, an anisotropic Cartesian grid method is proposed.
该方法通过引入区域内节点间距函数,人为给定某一定值或渐变数值可在任一局部水域进行网格加密。
By introducing regional node spacing function, which given a numerical value or varied grade of cell, the mesh could control the changes of element size.
流体力学控制方程的数值求解过程中,当网格加密、粘性效应强或来流马赫数低的时候,流场收敛非常缓慢。
When the number of grid is very great or viscous effects dominates or sometimes the speed of flow is low, the rate of convergence slows down dramatically, resulting in inefficient solution technique.
并通过局部网格加密的方法,解决了粗糙网格划分下无法识别较小尺寸障碍物的困难,以及保证了运算精度。
Ensure the accuracy of computing, using the local mesh refinement approach, which solute the difficult of coarse mesh can not identify the smaller size barrier.
在玻璃周围,大楼钢结构的对角线网格清晰可见,在结构压力更大的悬臂处,网格更加密集。
Around the glass, the diagonal grid of the building's steel framework is visible, the lines getting denser in the cantilever, where the structural stresses are more extreme.
当荷载作用边界随时间变化及在动力荷载作用下,网格生成器可随应力集中区域的变化而动态退化与再加密网格。
When the load boundaries vary with time and under the dynamics loads, the mesh generator can derefinement and re-refinement dynamically mesh with moving of stress concentration region.
作为网格安全的第一道防线,某种水平上也是最主要的一道防线,加密技术普遍受到关注。
Grid security as the first line of defense, and it is also the most important line of defense, so encryption technology generally a cause for concern.
数据加密和数字签名是解决网格安全问题的关键技术。
Data encrypting and data underwrite are key technique of solving the problem of network security.
计算过程中,采用了压力修正法中的SIMPLE算法,贴体网格及局部加密技术。
In the calculation, the SIMPLE method of pressure speed amending method, body-fitted and refined mesh were adopted.
通过与实验的比较分析,建议计算应采用QUICK格式,并在进行网格独立性试验的基础上使用加密网格。
From the comparisons QUICK is recommended and finer grids should be used after the grid independence test being made.
计算结果表明解相当稳定并且不需要在音速线附近等处加密网格或作其他处理。
Results of calculation prove that the solution is very stable and it is not necessary to modify the mesh near sonic line or other places.
采用规则网格进行离散,对于倾斜界面无法避免绕射噪声,若加密网格又过度增加工作量。
Using regular grid for discretization results in diffraction noise for dip interface, and infilling grid may increase the computing efforts.
并在此基础上采用一定的加密、正交化方法,生成了三维反向喷流流场分区对接结构网格。
Using the program to generate 3-D multi-block abutting structured grid of reverse jet flow field with the controlling of concentration and orthogonalization.
流场大部分区域为四面体网格,在边界附近采用加密的五面体棱柱型网格,满足了SST模型对边界层网格的要求;
As the tetrahedral grids exist in the majority area, the pentahedral prism grids are adopted near the boundary, which meets the SST model's requirement of mesh in the boundary layer.
该网格生成器可对复杂的区域进行自适应加密。
The mesh generator can be used to refine complex region adaptively.
针对板料成形模拟过程中的工艺切口问题,提出了网格自适应加密与减密技术的工艺切口算法。
An algorithm for open cutting was presented for mesh adaptive technique, and the template library based on mesh adaptive was built.
最后,采用有限元误差估计方法对新网格单元的计算误差进行估计,对误差较大的单元进行加密,减少了有限元分析误差。
Finally, to reduce the analytical error of finite element, with the error estimating method for FEM, the error of new mesh elements are estimated and the elements with large error are refined.
另外,对于局部加密网格,该方法具有一致收敛性。
More importantly, this method also leads to uniform convergence for layer-adapted meshes.
为了适应非定常流场对网格品质要求较高的特点,网格生成采用了基于几何外形、模型表面曲率为基础的自适应生成及加密方法。
The unsteady flow request a higher quality in grid so in this article the Cartesian grid is generated based on geometric and the body curvature.
本文针对这些题目,对基于身份的加密体系体例入行了深入地研讨,主要工作是研讨基于身份的加密体系体例的层次化在网格中的应用,工作如下。
Aiming at these problems, this thesis studied IBE system deeply, which focused on the study of hierarchy of IBE system for Grid mainly, the work as follows.
讨论了网格局部加密和不同线性方程迭代方法对程序收敛的影响。
The influences of partial improvement of grid density and different solution methods of linear equations on...
在FL027多重网格基础上作了局部加密。
Based on the multigrid of FL027, partial fine mesh was implemented.
采用加密网格的大涡模式获取边界层风、温场的高分辨率模拟结果,并据以分析近地面层大气的湍流特性。
Refined grids were utilized in a large-eddy simulation (LES) model for obtaining high-resolution planetary boundary data and analyzing surface layer turbulence.
采用加密网格的大涡模式获取边界层风、温场的高分辨率模拟结果,并据以分析近地面层大气的湍流特性。
Refined grids were utilized in a large-eddy simulation (LES) model for obtaining high-resolution planetary boundary data and analyzing surface layer turbulence.
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