查询词典 paraboloidal coordinates

In curvilinear coordinates , a numerical simulation model for wave propagation on non-uniform current in water of slowly varying topography was presented with employing self-adaptive grids method.

利用自适应网格技术，建立了曲线坐标系下缓变水深水域非均匀水流中波浪传播的数值模拟模型。

Geometrically nonlinear strain-displacement relations, the total potential functions and equilibrium equations of the tires are derived with respect to the orthogonal curvilinear coordinates for details.

以轮胎的内轮廓曲面为参考面，用正交曲线坐标描述轮胎的几何变形，详细推导了正交曲线坐标系下轮胎的几何非线性的应变—位移公式和平衡微分方程。

The curved grid is taken to constitute a generalized curvilinear system. Thus, the wave equations have to be written in curvilinear coordinates before applying the numerical scheme.

这一映射技术将直角坐标系下的曲界面变换成曲坐标系下的规则界面，在曲坐标系下用伪谱法模拟波场，最后利用插值得到实际波场的合成记录。

The interior contour surface of the tire is taken as the surface of reference and the system of orthogonal curvilinear coordinates is used for modeling the shell geometry and deformations.

采用Reddy型高阶剪切精化理论，导出了一般壳体内任一点的位移表达式。

Based on the Navier-Stokes equations in conservative form derived with respect to nonorthogonal curvilinear coordinates and nonorthogonal velocity components, the numerical method for solving 3D viscous flow has been discussed.

本文基于非正交曲线坐标与相应的非正交速度分量下导得的守恒型N—S方程，讨论了求解三维粘性流动的数值方法，计算中显式时间推进算法与Baldwin—Lomax湍流模型被采用，应用本工作发展的程序，作为算例计算了一个沿径向非等截面环形叶栅的三维粘性流场，得到了诸如三维压力分布，总压损失分布以及十分清晰的二次流动图景等丰富的流场信息。

At first, the velocity which is the outlet velocity of 2-D numerical model by using the VOF and κ~εmodel is used as the inlet velocity of the 3-D numerical model. The control equations of 3-D water and sediment movement are described in the orthogonal curvilinear coordinates, and the equations is segregated by using the Finite Volume Method.

以二维的水气两相流的VOF 模型结合雷诺时均法的κ~ε双方程模型进行水气两相流计算，得到稳定流场作为三维水沙计算的初始进口条件。

Introduction, Reviews and Concepts of Functions, Differentiation, Vector Algebra, Vector differetiation, Vector Integral, Orthogonal Curvilinear Coordinates.

课程介绍及授课计划、函数观念及复习、微分、向量代数、向量微分、矢量积分、正交曲线坐标、微分方程式。

The interior radial tire contour is taken as the curved surface of reference and the system of orthogonal curvilinear coordinates is used for modeling the shell geometry and deformations.

当前理论认为子午线轮胎结构主要由受力构件带束层和胎体组成，采用变截面和各向异性一般层合壳体来近似。

Based on application of 3D body-fitted numerical grid with a curvilinear coordinates system and the theories about turbulent flow and the laminar flow, the new techniques that the independent variables were expressed by co-variable velocities were applied to solve the problems about flow around a high-speed car body for the first time.

采用当今数值新技术，较为全面和深入地研究了高速汽车车身绕流问题。本文依据k-ε双方程湍流模型和附面层理论，采用先进的曲线坐标系下的贴体与边界正交数值网格技术，首次把以协变速度分量作为独立变量的数值技术运用于汽车车身绕流问题的求解。

In this paper, a modified multi-zone coupling method is presented for simulating the integrated flowfield of annual combustors, the SIMPLE-ENC algorithm is presented to achieve higher accuracy, and the wall function method in arbitrary curvilinear coordinates for treating near wall region is given here.

针对燃烧室多连通域的特点，本文采用分区法生成网格，并且提出了一种即时传递信息的改进多区域耦合法求解燃烧室整体流场，该法已成功地应用于涡扇和涡轴发动机环形燃烧室整体流场计算；本文提出了计算流场的SIMPLE-ENC算法，显著提高了流场计算的收敛速度；本文详细描述了壁面函数在空间任意曲壁上的应用方法。

Eight cases of simple chordee of penis were adopted urethral extending.9 cases of severe simple chordee of penis were adopted primary urethroplasty.

8例单纯性阴茎下弯患者采取尿道延伸术，9例重度阴茎下弯患者采取切断尿道矫直阴茎一期尿道成形术。

She is a daintily dressed young lady.

她是个装饰娇艳的少女。