查询词典 implicit difference scheme

For gas flow past cylinder, the characters of flow field in different Mach number and Knudsen number condition were investigated, and especially for low Knudsen number cases, the results were compared with calculating results of Euler's equation. It showed that they are correspondent by comparing the characters of bow shock and wake. The convergence rates of different high resolution and implicit schemes were also investigated. The convergence behavior of the implicit WENO scheme developed in this paper is better than others. For gas flow past NACA 0012 airfoil, the calculating results were compared with results of experiment. It showed that the results of WENO scheme are of higher accuracy for the case with angle of attack.

在圆柱流场时，我们探讨不同马赫数且不同纽森数时的流场特性，并在低纽森数时，与那维尔-史托克方程式的计算结果比较，我们比较了弓形震波及尾流附近的特性，其结果是相当符合的，同时我们也比较不同高解析隐式算则的收敛历程，从收敛历程图可得到，本文发展出来的隐式WENO算则有较佳的收敛效果；在NACA 0012翼形的流场中，我们将与实验结果做比较，发现利用WENO算则计算的结果，对於具有攻角的流场，亦有相当高的准确度。

Two forms of implicit TVD schemes are proposed in this paper for the simulation of nonequilibrium flows past hypersonic re entry vehicle, which are derived from the diagonal form of an approximate factorization algorithm and lower upper scheme applied to the implicit part of Harten Yee's TVD scheme respectively.

针对高超音速化学非平衡流提出了两种隐式格式。一种是近似因子分解算法对角化形式在隐式TVD格式上的推广，另一种可视为隐式TVD格式的LU分解形式。

Using the directional derivative formula, the governing equation is discreted in the physical domain in which a nonorthogonal grid system is used. Two kinds of AF2 schemes, i. e. AF2-plane relaxation and full implicit AF2, for the TSD equation are proposed. Numerical results show that the full implicit AF2 scheme converges faster than AF2plane relaxation scheme. For the rectangular wing and swept wing, the results of the present method are compared with FP results, and the agreement is good.

采用适合于梯形机翼和后掠机翼的斜网格，利用方向导数公式直接在物理空间对主管方程进行离散；将近似因式分解方法应用于绕机翼的跨音速小扰动势流问题，提出AF2—面松弛和AF2全隐式两种迭代格式，并对它们的收敛速度进行比较，结果表明后者明显快于前者；直机翼和后掠机翼的算例表明，本文方法的结果与精确势流方法的结果吻合良好。

These methods will be studied separately with the Euler implicit difference scheme and the Euler explicit difference scheme.

第一种方法是两层有限元Galerkin方法，第二种方法是修正有限元Galerkin方法，对这几种算法我们分别在欧拉显式差分格式和欧拉隐式差分格式下进行讨论研究。

This article uses the implicit function theorem and the properties of analytic functions,with less limitations for the uniqueness,continuity,continuous differentiability of the implicit functions,and gets the sufficient and necessary conditions of the existence of implicit functions by simplifying them.

从常用隐函数存在性定理出发，放宽对隐函数唯一、连续、连续可微等性质的限制，利用解析函数的性质将其展拓，得到广义隐函数存在的充分必要条件和广义隐函数的分布特征。

With the proceeding of modern cognitive psychology and implicit memory, there"s a intergradation between social psychology and cognitive psychology, a new subject named implicit social cognition is then set up. It emphasizes the process of social cognition and mental processing in social context. As the importance of attitude in social cognition, the study of implicit attitude is currently the necessary issue to be resolved.There"re two sections in this dissertation.

随着现代认知心理学和内隐记忆研究的兴起，社会心理学和认知心理学出现了融合的趋势，形成了对内隐社会认知研究的探讨，注重对社会认知过程及个体在社会环境中的心理加工过程，基于态度在社会认知中的重要作用，内隐态度的研究成为目前内隐社会认知研究的前沿问题。

Firstly this dissertation introduces the theories of implicit marketing mode completely. It includes the conception of implicit needs, the connection of implicit marketing mode, the causation, the meaning of KANO mode, laddering technology and so on.

本文首先全面介绍隐性营销的概念和其相关理论，包括隐性需要的概念、产生原因、挖掘方法，隐性营销的概念、模型，KANO模型、爬梯技术理论等。

In this paper, a review was presented on the definition, categories, measures and the current research situations of implicit self-esteem. Then, two experiments were designed. And Implicit Association Test was employed to measure implicit self-esteem.

本研究首先对内隐自尊的涵义、分类、测量方法及国内外的研究现状进行了整理和总结，然后运用内隐联想测验测量内隐自尊并展开了两项实验研究。

The induction of it is related to one's implicit cognition and its formation is dependant on the outtake and reconstruction of implicit memory . The nature of intuitive decision making in sports is the external expression of implicit processing . qkzz.net

提出：运动直觉决策现象表现为运动员在比赛场上的&问题解决的亲切感&，其产生和人脑的内隐认知有关，需要记忆的内隐提取与重构来完成，实质是内隐加工过程的外部体现。

The model incorporated with the aerodynamical urban canopy scheme is better to simulate the wind field on the urban areas.The conclusions are drawn by the comparisons between the simulation results of the building drag scheme and the aerodynamical urban canopy scheme in a real town: the simulated wind speed with the aerodynamical canopy scheme on the town areas is always lower than that on the surrounding rural areas, but that with the other scheme is not so.

分别采用建筑物拖曳法与建筑物动力冠层方案对一个实际小规模城市进行模拟试验，分析表明引入建筑物动力冠层方案可以模拟出小规模城市地区水平风速偏低的现象；还可以模拟出城市地区建筑物动力作用对湍流活动的影响；对湍流动能模拟结果表明比较符合实际分布情形。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样