涡量

对涡量输运方程的时间项运用四阶Runge-Kutta法离散，从而将方程分解为4个计算步分别求解。

The solution of the vorticity transport equation was split into four steps using the fourth-order Runge-Kutta method .

用ADI方法解涡量方程；用Poisson方程直接法解流函数方程。

ADI method is used for solving the vorticity equation and a direct method for Poisson equation is used for solving stream function equation .

用两个分布函数分别定义涡量和流函数，得到用两个格子Boltzmann方程建立的模型。

( Using ) two distribution functions to define the vortices and stream function , we obtained two lattice Boltzmann equations to build this model .

对仿生非光滑表面减阻机理，采用流体力学分析软件CFX进行了数值模拟，通过对速度场、剪切应力、涡量的计算结果进行分析，得出了仿生非光滑表面减阻几种主要原因。

Through analysis of velocity vector field and velocity fluctuation this article probe into drag reduction mechanism of unsmooth surface .

解决了流函数方程的泛函和涡量输运方程的Galerkin公式的边值问题，导出了壁涡的计算公式。

A variational functional of the stream function and Galerkin formulation of the vorticity of the respective boundary value problems were given . The boundary value of vorticity was formulated .

从涡量流函数形式的N-S方程出发，在不同的振动频率、振幅及Re数下数值研究了均匀来流中横向振动圆柱粘性统流的涡脱泻现象。

Vortex shedding from a circular cylinder oscillating transversely in uniform flows is numerically investigated using the Navier-Stokes equations for different oscillating frequencies , amplitudes and Reynolds numbers .

本文通过编程计算阀腔内部的涡量、流函数及速度的分布，阐述MATLAB语言在计算流体力学中的的应用。

In this paper , the distribution of the vortex , stream function and the velocity in the hydraulic valve chamber was simulated ; at the same time , the application of MATLAB programming language in computation fluid mechanics was also expounded in the paper .

提出一种新的线性化微分求积法（LDQM），将这种方法应用到流函数和涡量形式的Navier-Stokes方程。

A new linearized differential quadrature method ( LDQM ) is applied to the unsteady Navier-Stokes equations in the stream-function and vorticity form .

将加功量作为目标函数并结合边界涡量流BVF（BoundaryVorticityFlux）这个诊断因子，对某高性能跨声风扇转子进行了优化。

The aerodynamic optimization of a transonic fan rotor was implemented by controlling the BVF ( boundary vorticity flux ) distribution on rotor blade . A novel objective function of torque associated with BVF was used to optimize the blade configuration .

分析发现，随着Fr数的增大，涡量减小，羽流卷吸空气的能力减弱，涡旋变化频率降低，火焰面增长并逐渐偏离对称轴，而且由于浮力减弱，羽流轴向速度呈下降趋势。

With the increasing of Froude number , vorticity , air entrainment by plume and frequency descends , flame is longer and deviates from axis gradually . Besides axial velocity of plume also decreases for buoyancy attenuation .

为克服传统涡量测量方法的缺点，提出了从代表流体运动的粒子图像中直接测量涡量（DMV）的方法。

For overcoming the shortcomings of conventional methods for vorticity measurement , a new direct measurement of vorticity ( DMV ) method extracting vorticity from particle images was proposed .

对二维双翼模型的超前、对称和滞后三种模态用计算流体力学软件FLUENT及软件的二次开发功能进行了数值模拟，并从涡量、压力和速度三方面分析了翼型获得高升力的原因。

Three flying conditions including advanced mode , symmetry mode and delayed mode of two-dimensional double-wing model , is studied by using fluid mechanics calculative software FLUENT and the secondary development function from three aspects of vortex , pressure and velocity vector . 3 .

从定常二维平面流动的流函数涡量型N-S方程出发，从理论上推导出一种不同于通常提法的二维平面流动的定解提法.为解决此类流动的多解性问题奠定了理论基础。

According to the definition of stream function and vorticity , this article theoretically derives a formulation of definite solution problems for resolving two dimensional flow , which is different from the usual formulation , from the stream function-vorticity N-S equation .

在深度平均的理论下，用涡量流函数方程代替连续方程和动量方程，并和标准k-e方程，浓度方程，以及相应的边界条件一起建立了完整的数学模型。这样避开了压力项的影响。

Then , based on fitted boundary coordinate system and depth average theory , the Ω & Ψ equations , standard k - ε turbulence model , concentration equation and appropriate boundary conditions are adopted to set up mathematic model .

矢性流函数-涡量法充型过程数值模拟

Simulation of Mold Filling with Vector Stream Function - Vorticity Method

涡量脉动的相似性结构与湍流理论

Similarity structure of vorticity fluctuation and the theory of turbulence

中华鲟产卵场平面平均涡量计算与分析

Chinese sturgeon spawning ground horizontal mean vorticity computation and analysis

三维湍流流动的涡量-向量势法数值模拟

Mathematical modelling of 3-dimensional turbulent flow by VORTICITY-VECTOR potential method

实验流场的涡量图显示油腔内局部流场结构较复杂。

Vorticity map of experiment results indicate that partial flow fieldis complex .

从粒子图像中直接测量涡量的方法研究

Study on direct measurement method of vorticity from particle images

湍流大小尺度涡量方程组及其封闭

Large small scale vortex equations of turbulence and its closed

用速度线积分计算通风机入口前的涡量场

Using Velocity Linear Integration to Compute Vortex Field before the Fan Inlet

六线涡量探针的测量原理与应用

The principle and application of a SIX-SENSOR hot-wire probe for vorticity measurement

涡旋波流场的涡量测试与计算及特征参数的影响

Test and Simulation of Vortex Wave Vorticity and Effects of Characteristic Parameters

地形对涡量传播和台风切向风速变化的参数敏感性

The topographic parameter sensitivity to vorticity propagation and typhoon tangential velocity changes

曲率驱动的基于亥姆霍兹涡量方程的图像修复模型

A Curvature-Driven Image Inpainting Model Based on Helmholtz Vorticity Equation

小屏后涡量分布的实验研究

Experiments on the vorticity distribution behind the small panel

基于涡量修正的叶栅气动优化设计

An optimal method for the aerodynamic design of cascades based on vortex modification

涡量流函数二维空穴环流计算流函数-涡量法的二维方腔流数值模拟

The Stream Function-Vorticity Method Used in Two-Dimensional Driven Square Cavity Flow Numerical Simulation

涡量&流函数法模拟不同高宽比和角度的腔内自然对流

Simulation of The Natural Convection in A Closed Cavity With Vortex-stream Function Method