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N.S.相关的网络例句
与 N.S. 相关的网络例句 [注:此内容来源于网络,仅供参考]

At the same time, this thesis focuses on the theoretical research on the LBGK method and discusses the inner relation between the LBGK and the N-S equations.The relationship among the selection of velocity group , the forms of equilibrium distribution functions,and the macroscopic N-S equations is clearly revealed.LBGK method has many advantages, such as easy dealing with the complex boundary conditions and high amenability to parallel computing.

本文系统地总结了各种LBGK模型,特别是对LBGK模拟二相流和多相流模型进行了认真地研究;同时从新的角度对LBGK进行了理论研究,用全新的方法探讨了LBGK和N-S方程的本质联系,清晰地揭示了速度族的选择、平衡态分布函数的形式和宏观NS方程三者之间的关系。

On detailed study of the central difference finite volume method proposed by Jameson, discrete formulae of 3-D Euler equations and N-S equations are presented.

详细研究了Jameson的中心差分有限体积法,推导了Euler方程和N-S方程的空间和时间离散公式。

Firstly, N-S equation and continuity equation in the gap of rotating dynamic membrane separator are founded.

首先,首次通过理论分析,建立起旋转动态膜环隙间的N-S方程及连续性方程,根据动态过滤的特点,描述了环隙间流场的速度分布,并得出膜面压力计算式:〓,通过实验测试,验证了膜面压力解的准确性。

This paper is the continuance of that of Lewalle (2001). Lewalle has made use of Gaussian wavelet to obtain the N-S equations with flexion as fundamental quantity in the infinite domain. In that work, Lapalace operator has been degraded to one-order operator. Moreover the resulted N-S equations take the form of diffusion equations with local bilinear mutual interaction kernel.

本文是Lewalle工作的继续,Lewalle利用高斯子波,得到了以弯曲度为基本量的无穷域中N-S方程,此时Lapalace算子降低为一阶导数,并且N-S方程变形为具有局部化双线性相互作用的扩散方程的形式。

In this note the author showed that if s is nonnegative integer and A∈B n,n+s, then |R|=2 n if and only if A contains a submatrix which is permutation equivalent to the unit matrix of order n.

作者证明:如果s是一个非负整数且A ∈Bn ,n+s,那么|R |=2 n 当且仅当A含有置换等价于n阶单位矩阵的一个子阵

Warning:\n\nServer sent an unrequested proxy automatic\nconfiguration file to Netscape:\n\n %s\n\nConfiguration file will be ignored.

警告:\n\n服务器向 Netscape 发送了一个未经请求的代理\n自动配置文件:\n\n %s\n\n此配置文件将被忽略。

N\n%s\nContinue delivery of any remaining unsent messages?

n\n%s\n是否继续递送任何所剩的未传送邮件?

In this thesis, in order to calculate the viscid effect, Euler equations+boundary layer correction method and N-S equations+S-A turbulent model method are introduced.

另外,本文在计算流场的粘性影响时,分别采用了附面层修正+Euler方程和S-A湍流模型+N-S方程两种方法。

It adopts Reynolds time-average N-S equation and k-s turbulence model to calculate the inner 3-D viscid turbulence flow of hydraulic turbine. In the unstructured grid, the governing equations are discredited with Finite Volume Method based on Finite Element Method. And the pressure correction method is proposed in numerical calculations.

然后采用基于雷诺时均N-S方程与标准k-ε湍流模型来计算水轮机三维粘性湍流场,在非结构化网格中,采用基于有限元的有限体积法对方程进行离散,用压力校正法进行数值求解。

The following are main contents studied: A finite element method for Navier-Stokes equation with ALE formulation is considered and by combined with theNewmark method of numerical intergration a pressure correction scheme is obtained for the solution of the FE formulation of N-S equation. Because the incompressibility condition can be satisfied approximately in this scheme, the interpolation functions of elements can be equalorder for the velocity field and pressure field. In the ALE formulation the fluid-solid interaction analysis became a three-field coupling problem of the fluid field, the solid field and the fluid dynamic mesh. The properties and charactiristices of this three-field coupling problem are deeply discussed.

研究的主要内容有:主容器中流体大晃动是一种强非线性问题,文中研究了求解ALE描述的粘性流体N-S方程的有限元方法,以有利于大晃动自由液面的跟踪和流体大晃动中非线性现象的描述;并结合Newmark数值积分法推出了求解ALE型N-S方程的压力修正解法,由于这种解法可以近似满足不可压条件,因此可以采用速度场和压力场等阶插值的有限元离散格式,从而较好地解决了普遍采用的不等阶插值解法中,速度场和压力场数值精度不一致、程序编制不便等的不足。

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