曲线坐标

曲线坐标系中的B样条有限元法

B-Spline Finite Element Method in Curvilinear Coordinates

曲线坐标网格下二维涌波数值模拟的TVD型格式

Application of TVD scheme to numerical simulation of 2-D surge in curvilinear coordinates

贴体曲线坐标系中的非交错网格的SIMPLE算法

SIMPLE Algorithm with Non - staggered Gird in the Body - fitted Curvilinear Coordinate System

CAD技术在等距曲线坐标求解中的应用

Application of CAD Technology in Equidistant Curve Coordinate Solution

编程计算器在坐标正、反算中的应用用曲线坐标计算细临界型一般n次系统后继函数公式

Formulas for Computing Successor Function of Center-Weak Focus System of n Degree by Using Curvilinear Coordinates

本文利用曲线坐标的方法研究局部隆起或凹陷地形中的Love波频散问题。

The problem on dispersion of Love wave in ridge or canyon topography is studied by means of curve coordinate system .

采用控制体积法与SIMPLE算法对一般曲线坐标下控制方程进行离散和求解，建立了长江土脑子河段曲线二维动床模型。

Governing equations of the model are discretized by control volume method , and non-staggered grids and SIMPLE algorithm are introduced to simplify the program during the discretization .

计算程序中采用有限体积法，在任意非正交曲线坐标系下，用SIMPLE算法求解三维NS方程和Kε湍流方程。

The code was adopted limited volume method and was under the non orthogonal curve coordinate by means of famous SIMPLE .

正交曲线坐标下Boussinesq方程的初步研究

Research on Boussinesq Equations in Orthogonal Curvilinear Coordinate System

本文提出了Maxwell方程组基本的、适用于任意坐标系的张量公式及广义矩阵公式，还揭示了推求正交或非正交的曲线坐标系中Maxwell方程组的示例。

An example of deriving basic formulae of Maxwell 's equations in an arbitrary coordinates system is presented .

建立了TIG焊接熔透熔池流场与热场的数值分析模型，采用非正交贴体曲线坐标系成功地处理了熔池表面的曲面边界。

A mathematical model has been estabished for the fluid flow and heat transfer in TIG full-penetrated Weld pool .

求解的基本方程是任意曲线坐标系中以逆变速度为变量的N-S方程和椭圆型的压力Poisson方程。

The method is based on the contravariant velocities and the elliptical Poisson pressure equations in general curvilinear coordinates .

用张量分析理论，推导出了正交螺旋曲线坐标系下N-S方程。

The Navier-Strokes equation has been educed with tensor analysis theory in helical curved coordinate system .

逆风因子法在非正交曲线坐标系中解不可压N-S方程中的应用

Application of the upwind factor method to solution of incompressible Navier-Stokes equations in non-orthogonal curvilinear coordinate system

本文在H·T·Yang等人的基础上，进一步完善了正交曲线坐标系中矢量微分的直接方法。

In this paper , the direct method of vector differentiation in orthogonal curvilinear coordinates is improved , based on the ideas of H · T · Yang and others .

该文发展了一种在任意曲线坐标系上求解层流Navier－Stokes方程的数值方法，该算法以SIMPLE为基础，采用了非交错网格，因而对原始算法中的压力修正方程进行了改进。

A numerical method is presented in this paper , based on the SIMPLE scheme for solving the Navier Stokes equations in arbitrary curvilinear coordinates . The method improves the pressure modified equation , and adopts non stagger grid .

从标准的单相湍流kε模型出发，提出了一个任意非正交曲线坐标系下模化管道内气液两相泡状流的湍流kεkgεg模型。

Based on the standard single phase turbulent flow model , a new turbulence model is put forward to model the gas-liquid two-phase bubbly flow in a general non-orthogonal curvilinear co-ordinate system .

正交曲线坐标系的Cartan结构方程及其在力学中的应用

Cartan constructive equation of curvilinear orthogonal coordinate system and its application in mechanics

本文利用曲线坐标的分析方法研究SH波对凹陷地形散射的边值问题。

He scattering of plane SH-waves by canyon topography with variable depth-to-width ratio is studied by means of curvilinear coordinates method in this paper .

并用该高精度数值方法分别计算了笛卡尔坐标系不可压缩Navier-Stokes方程和一般曲线坐标系不可压缩Navier-Stokes方程。

Not only in Cartesian coordinate system but also in curvilinear coordinate system , Incompressible Navier-Stokes equation is calculated by the high-order numerical method .

导出了本文正交曲线坐标系下的ADI法差分公式。本文方法边界适应能力强，计算时间短，内存少。

The difference equations for ADI method with the orthogonal curvilinear coordinate are developed , which are applicable to a complex boundary .

基于任意曲线坐标下的N-S方程，对不同攻角下单排叶栅的流动分离情况进行数值分析。

Based on the Navier-Stokes equations expressed with arbitrary curvilinear coordinates , the separation flow under different attack angles was investigated by numerical method .

采用贴体曲线坐标系处理熔池曲面，利用SIMPLER方法对不锈钢焊接试件熔池中的流场与热场进行了数值分析，并进行了焊接工艺试验对模型加以验证。

The fluid flow and temperature fields in weld pools of stainless steel workpieces are analyzed by using SIMPLER algorithm . TIG welding experiments are made to verify the validity of the model .

计算了扭曲叶片S2流面的湍流流场.在非正交曲线坐标可压湍流方程组中包含了以无量纲形式表示的能量方程，熵方程和K－ε湍流模型方程。

These equations are derived with non & orthogonal curvilinear coordinates and by no-dimensional form . The general difference expression of energy equation , k and ε equations and entropy equation are adopted .

本文在正交曲线坐标系下从三维弹性理论的基本方程导出正交异性旋转壳体的状态方程.对旋转层合壳体，状态变量沿环向展开为Fourier级数形式；

From the foundational equations of three dimensional elastic theory , the state equations for rotational shell in ortho curve coordinate system were deduced . The state variables are , in circular direction , expanded as Fourier serials ;

本文基于非正交曲线坐标及非正交速度分量下完全守恒型的N-S方程，采用整体H型网格，用数值方法研究叶轮机械中的泄漏流动。

Based on the N-S equations in full conservative form expressed with nonorthogonal curvilinear coordinates and corresponding nonorthogonal velocity components , the leakage flow in turbo-machinery was investigated by numerical method using an efficient integral H-grid .

文章把杂交元的优化设计原理用于厚薄壳问题，构造了正交曲线坐标系中的Mindlin型四节点二十自由度壳元。

A 20 DOF hybrid stress element based upon Mindlin plate theory is developed by using the optimization design method for thin and moderately thick shell .

点M在空间曲线坐标系中的r，v和a及其在不同坐标系中的变换关系变质量非线性非完整系统相对于非惯性系的一类新型变分原理与运动方程

γ,ν and a of Point M in the Spacial Curvilinear Reference Frame and Their Relationship of Conversion in Different Ones A NEW VARIATIONAL PRINCIPLE AND THE CORRESPONDING EQUATIONS OF MOTION OF A HIGH-ORDER NONLINEAR NONHOLONOMIC SYSTEM OF VARIABLE MASS ON A NONINERTIAL REFERENCE FRAME

本文提出了一种在任意斜交曲线坐标系中确定矢量的Helmholtz方程分量式的一般方法&直接微商法。

The general method being proposed in the paper is related to derive Component From Helmholtz 's vector equation against oblique Curvilinear Coordinate , called " Dircct Differentiating Approach " .

本文从广义曲线坐标运动方程出发，以及根据Head的二维牵引理论（entrainmenttheory）模型导出沿侧滑翼法向翼剖面表面曲线的三维可压缩湍流边界层运动方程组。

This paper starts from the equations of motion in generalized curvilinear coordinates and the model of Head 's two-dimensional entrainment theory , and derives a set of equations along surface curve on normal profile of a yawed wing for a compressible three-dimensional turbulent boundary layer .