查询词典 numerical method

Numerical model tests show that the method proposed by this paper is as accurate as nine-point finite-difference when permeability tensor is in diagonal form, and it can simulate more complicated cases when permeability is in full-tensor form.

CVFE网格是非正交网格，本文混合运用有限差分和有限元方法计算折算压力梯度，得到与有限差分和PEBI网格不同的离散形式，提出了根据流量符号判定上游的方法，使模型更为合理。

Numerical model tests show that the method proposed by this paper is as accurate as nine-point finite-difference when permeability tensor is in diagonal form, and it can simulate more complicated cases when permeability is in full-tensor form. Its application prospect is more extensive in fine detailed reservoir simulation.

模型计算表明，对于形式简单的对角渗透率张量，本文方法可以与九点差分格式相比，精度是可靠的，并且该方法还能模拟完全各向异性渗透率张量，对于精细油藏数值模拟，其应用范围将更为广泛。

The high - order difference method of wave equation has the advantages of high accuracy and small numerical dispersion.

波动方程高阶差分法具有精度高、数值频散小的优点。

Finite difference method of one of the oldest numerical simulation methods, and it is used far-ranging recently.

有限差分方法是计算机数值模拟最早采用的方法之一，至今仍被广泛运用。

The design method of virtual dynamic simulation instrument for numerical solutions of differential equation based on LabVIEW is proposed.

给出了基于LabVIEW的微分方程数值解虚拟动态仿真仪的设计方法。

Numerical differentiation is that derivative value of a function at a certain point is approximately solved in discrete method.

中文摘要：数值微分就是用离散方法近似地求出函数在某点的导数值，关于数值微分已有许多求解方法，但这些方法都有各自的局限性，并且关于高阶导数近似逼近的方法研究相对较少。

This method can be used to research complex atoms and molecules, due to the Dirac equation can been solved by DVM and its flexible in arranging calculation points and choosing numerical basis sets.

分子计算程序的建立旨在最终能计算大分子的电子动量谱。

Direct numerical simulation method is one of the important methods for the particulate flows.

而直接数值模拟方法，可以经济、直接、准确的给出粒子沉降的规律，是研究的一种重要手段。

Direct numerical simulation is an effective method to study fluid flows.

直接数值模拟是目前研究流动问题的有效方法。

At last a direct numerical integration method is applied to computing...

在此过程中通过连分式展开加快积分求和的收敛速度。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。