查询词典 volume element

Still based on Ciarlet-Raviart mixed variational principle, this section gives the mixed finite volume element scheme for biharmonic equation on rectangular partition.

综合有限元方法及有限差分方法的优点，李荣华教授于二十世纪八十年代初提出了广义差分方法，亦称为有限体积元方法。

For the time term, we use central difference methods to discrete; for the space term,we use finite volume element methods to discrete.

对方程的时间项，我们采用中心差分的方法离散，对空间项采用有限体积元方法进行离散，文中对误差给收敛性和稳定性给出了分析，同时给出了一些数值结果。

In order to predict the mechanical property and strength of the plain woven fabric composite, a finite element model of the Representative Volume Element with a convexo-convex structure was established based on plain woven fabric laminates in the distribution of micro yarn.

为更准确预测平纹织物复合材料的强度，基于平纹织物层合板内纱线的细观分布，建立具有双凸结构的特征体积单元RVE有限元模型。

The purpose of this paper is to introduce an effective couple-stress continuum model to describe the performance of grid material when L \approx l_{m} and to recommend a method to calculate the effective moduli of the model. The representative volume element method Dirichlet boundary conditions is proposed.

在此基础上导出了正交各向异性偶应力介质的特征长度表达式和偶应力介质梁的抗弯刚度表达式，定义了偶应力影响因子\delta 以表征梁的偶应力效应。

Because the coupling condition of NNGFM arises from the net current continuity imposed at the volume element interfaces, the relatively complex conversion formulation for partial current continuity condition of NGFM is unnecessary when applying G. E. T., and computation time is saved. The coefficient matrix of the coupled equations is tridiagonal, so it can be solved by forward elimination and backward substitution method.

NNGFM的基准校验及在大庆200MW核供热堆(NHR-200)上的应用表明，NNGFM计算精度和速度与第三类边界条件格林函数节块法NGFM〓相当，在相同精度下速度比CITATION能快1000倍；NNGFM给出的本征值、功率分布较NNGFM误差能减少一半以上，为更精确计算工作期、卡棒当量提供了条件。

In this paper,we present a kind of symmetric modified finite volume element method for nonlinear parabolic problems,and give the optimal order energy norm error estimates for full discrete schemes.

本文对一类非线性抛物型方程提出对称修正有限体积元方法，给出能量模最优阶误差估计，并证明了对称修正有限体积元方法的解与一般有限体积元方法的解之差是一个更高阶项。

In this article, aiming at a kind of elliptic problem, three types of preserving-symmetry finite volume schemes under quadrangle partition grids are firstly established . During the course of the establishing, the" vertex-centered" control volume are selected and the balance-equation is discretized by utilizing the finite volume element method.

本文首先对自共轭椭圆问题，在四边形剖分下，通过选取"vertex-centered"类型的控制体，并利用有限体积元方法对平衡方程进行离散，首次建立了四边形剖分下的三种保对称的有限体格式。

A finite element model of 3-3 piezocomposites was established according to the homogenization method, which combined the techniques relying upon representative volume element and periodic boundary conditions.

压电复合材料是由至少一种压电材料与非压电材料按照一定的连通方式组合在一起而构成的一种具有压电效应的新材料[1]。3 3 型压电复合材料是指压电相和非压电相分别三维连通的压电复合材料。

In chapter 3 we introduce a volume elementon 〓 and give some formulas of integration on 〓 under this volumeelement.The singular matrix Liouville distribution is introduced through theuse of this volume element.

第三章较详细地介绍了〓上的体积元素，给出了在这个体积元素之下的若干积分的计算公式，在此基础上提出了退化矩阵Liouville分布，讨论了这个分布的一些性质。

Quadratic finite volume element method s for the air pollution model in one-dimensional;2. The two-grid algorithm of the finite volume element method for second-order indefinite elliptic problems;3. A fally discrete finite volume element method is given for one-dimensional two-phase incompressible flow in porous media.

在初始网格剖分上采取分段线性函数空间作为有限体积元方法的试探函数空间，在相应的对偶网格上采取分段常数函数空间作为其检验函数空间，对一维不可压缩两相渗流驱动问题提出了全离散有限体积元方法，并得到L2-模误差估计。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。