velocity potential

Numerical Calculation of Velocity Potential and Fluid Dynamic in Time domain

时域速度势和流体动力的数值计算

Application of the Velocity Potential Model to Penetration Study

基于速度势侵彻模型的应用研究

One obstacles avoidance method by velocity potential field

一种基于速度势场的局部在线避碰方法

The accurate velocity potential equation is chosen as a mathematical model of the problem .

选用精确速势方程作为问题的数学模型。

Fluid velocity potential and simplified model for unanchored liquid storage tank

无锚固储液罐流体速度势及简化模型

An AUV Obstacle-Avoidance Method Based on Three-dimensional Velocity Potential Field

基于三维速度势场的AUV局部避碰研究

An Accurate Solution Method of Stream Function and Velocity Potential from the Wind Field in a Limited Area

用有限区域风速场准确求解流函数和速度势场的方法

Using the perturbation method we have got the fourth order of approximation of the velocity potential to the problem .

运用摄动方法，给出了速度势的四阶近似，然后得到了圆柱表面的无量纲的压力系数和阻力系数。

Based on R. The total velocity potential Φ is divided into two parts , the double-model potential (?)

本文假定R.基于低速与量级假定，将总速度势Φ分为合模势（？）

Induced Velocity Potential of an Arbitrary Horseshoe Vortex in the Uniform Flowfield with Free Surface

水面下均流中空间任意方位马蹄涡之诱导速度势

A local obstacle avoidance approach for AUV based on velocity potential field is presented with the idea of potential methods .

以势场方法的思想为出发点，提出一种基于速度势场的AUV局部避碰仿真方法。

This paper has adopted the low-order surface panel method based on velocity potential to predict the unsteady performance of propeller .

本文采用基于速度势的低阶面元法进行螺旋桨非定常性能的预报。

The basic fuc-tion is the velocity potential .

基本函数是速度势。

We first calculate the velocity potential between two adjacent time-steps and obtain the inertia force and added mass through integration .

本文通过直接求解船在变速运动时两个相邻时刻的速度势，进而积分得到附加惯性力及附加质量。

The Application of Transonic Velocity Potential Equation with Higher Order Approximation for Computing the Pressure Distribution over the Blunt Leading-edge Airfoil

应用跨音速高级近似扰动速势方程计算钝前缘翼型的压力分布

Complex Numbers Finally , we give as an example the calculation of complex velocity potential for a twisted duct with square cross-section .

最后给出了一个方形扭曲管的复速度势计算实例。

The hydrodynamic performance of propeller-rudder and rudder ball system was calculated by using the surface panel method theory which is based on velocity potential .

运用基于速度势的面元法理论对桨-舵和舵球干扰的水动力性能进行理论计算。

On the Velocity Potential Due to Pulsating Pressure Distribution on the Free Surface of Infinite-Depth Waters and the Radiation Condition for the Second-Order Diffraction Problem

无限深水表面压力脉动产生的速度势与二阶绕射问题的辐射条件

As a result , the velocity potential can be introduced , which satisfies the Laplace equation when the compressibility of the liquid is ignored .

忽略流体的压缩性可以引入速度势理论，流体满足Laplace方程。

For subsonic aerodynamic analysis , Linearized Velocity Potential Theory is used to evaluate the aerodynamic coefficient , and we can get subsonic aerodynamic model of vehicle by Regression Analysis .

在进行亚音速气动分析时，应用线化速度势理论计算运载器的气动力系数，而后进行回归分析，得到运载器亚音速飞行时的气动特性模型。

According to the characteristics of AUV , the collision field and three-dimensional velocity potential field are built , and the latter is composed of horizontal and vertical velocity potential fields .

根据AUV的特点建立了空间碰撞危险区域和由水平面速度势场和垂直面速度势场组成的三维速度势场。

This paper firstly analyses the limitations of traditional potential field methods in dynamic environment , and based on this analysis , the traditional potential field is improved by introducing the concept of velocity potential field .

分析了传统势场法在动态环境下的不足，并在此基础上引入了速度势场的概念，改进了传统的势场函数，推导出新的引力函数和斥力函数。

By using the symmetry of three-dimensional flow as the theoretical foundation , stokes stream function can be used to infer the relationship among the streamline , stream function and velocity potential .

在建立三维流场轴对称情况下，利用轴对称的性质，由STOKES流函数推导出三维流线，流函数与速度势的关系。

In order to analyze the influence of fins , a low-order panel method based on velocity potential was used to predict the steady hydrodynamic performance of a podded propeller with fins .

为了分析鳍对吊舱推进器水动力性能的影响，用基于速度势的低阶面元法预报附鳍吊舱推进器的定常水动力性能。

The accurate velocity potential equation is made discrete by the finite difference scheme ( using central difference scheme in subsonic region and using rotated difference scheme in supersonic region ) in the computational space .

在计算空间中，用有限差分格式（亚音速区用中心差分，超音速区用旋转差分）对精确速势方程离散化。

According to the geometric shape of structures , the whole fluid domain is divided into infinite sub-domains firstly , and eigenfunction expansion is used for representing the velocity potential in each domain .

依照结构物的几何形状，整个流域被分成无限多个子域，在每个子域内应用特征函数展开法求解速度势。

While the added-mass , damping coefficient as well as exciting force and moment are the each coefficient of the lateral coupled equations that Salvesen derived by the section velocity potential .

其中附加质量、阻尼系数和扰动力及力矩利用赛尔维逊由剖面速度势导出的横向耦合运动方程组中的各个系数。

Using the spectral method presented by [ 1 ] , the diffraction of a solitary wave around large vertical cylinder is investigated by solving the Boussinesq equations which are expressed by depth-averaged velocity potential .

本文以平均速度势表示的Boussinesq方程为控制方程，采用文献[1]中所提出的谱方法，研究孤立波在变水深下对直立大圆柱的绕射。

First , the Taylor series about wave elevation function η in the liquid free surface of velocity potential function was derived , and the nonlinear equations of free surface kinetic boundary condition and dynamic boundary condition was gained .

首先将速度势函数Ф在自由液面处作波高函数η的Taylor级数展开，从而导出自由液面运动学和动力学边界条件非线性方程组；

During different periods of Dan , there was great water vapor change as indicated by stream function , velocity potential and vapor budget , which showed the importance of water vapor in the development of typhoon Dan .

在Dan发生发展的不同时期，由大尺度水汽通量流函数和速度势表示的水汽通量输送和辐合也有明显的变化，表明水汽输送和辐合在Dan的发生发展及消亡过程中有一定作用。