地面效应

基于N-S方程的非定常地面效应研究

Research on Unsteady Wing in Ground Effect Based on N-S Equation

本文采用CFD技术，对存在地面效应时二维机翼在粘性流场中的空气动力特性进行了研究。

Aerodynamic characteristics of 2D wing in viscous flows in the presence of ground effect were investigated by CFD techniques .

基于N-S方程的地面效应模拟

The simulation of ground - effect based on N-S equations

采用有限体积方法求解了Navier-Stokes方程，计算了绕二维类汽车物体的绕流并研究了地面效应。

Navier-Stokes equations are solved numerically by a finite-volume method and applied to study flow around two-dimensional car like body and to study the ground effects .

用数值模拟手段给出了地面效应和影响。

The effects of moving ground are given by numerical simulation .

无人机起飞时的地面效应研究

Research of Ground Effect Influence on Take-off of Supersonic Pilotless Aircraft

在不同的飞行高度下，地面效应有着不同的机制。

The mechanism of ground effect is different with the heights .

涡旋压缩机型线耦合机理动态性研究悬停状态地面效应对旋翼和机身气动特性影响

Research for Aerodynamic Characteristic of Rotor and Fuselage in Hovering Ground-effect

针对降落过程中所面临的地面效应问题也进行了一些研究。

The ground effect problem during the landing process was also discussed .

地面效应以镜象涡系模拟。

The ground effect is simulated by use of an image vortex system .

具有地面效应理想车体三维绕流的研究

Research of three dimension flow field around the ideal car with ground effect

飞机地面效应及其试飞方法

Ground Effect on Aircraft and Its Flight Test Methods

详细阐明了地面效应对诱导阻力的影响规律。

The influence of ground effect on induced drag is analyzed in detail .

请记住，您也有在地面效应。

Remember , you also are in ground effect .

轿车地面效应的数值模拟

Numerical simulation on ground effect of simplified car model

地面效应是汽车空气动力学研究的主要难点之一。

The ground effect is one of the main difficulties in road vehicle aerodynamics .

地面效应试验中地板上三元紊流附面层测量

Measurements of three-dimensional turbulent boundary layers on the ground board in ground effect testing

进入突风域的超音速翼对地面效应的响应

Unsteady Solution of Supersonic Wings with Ground Effect

地震地面效应数值分析与模型实验简介

A synopsis of numerical analysis and modelling experiment of seismic effect on ground motion

地面效应试验的洞壁升力干扰修正

Wall lift interference corrections in ground effect testing

有攻角细长旋成体极端地面效应分析

Analysis of Slender Bodies of Revolution with an Angle of Attack in Extreme Ground Effect

较大的拍翼幅值，有利于增强地面效应。

For large stroke amplitude , the strength and range of the ground effect is enhanced .

二元地面效应试验中地板附面层的影响

Effect of the Fixed Ground Board Boundary Layers on Two-dimensional Wings in Low Speed Wind Tunnel Testing

该模拟方法基本消除了固定边界层对车身底部的影响，从而提高了地面效应数值模拟精度。

With this simulation , the influence of fixed wall boundary layer on underbody was eliminated by and large .

近地环境的电状态用该方法研究了近地升力面尾涡卷起的地面效应。

The improved vortex lattice method is used to predict the ground effect on wake roll-up behind a lifting surface .

采用镜像法理想涡模型分析了地面效应对翼尖涡位置和气流下洗角的影响；

Image method ideal vortex model is used for the analysis of how ground effect impacts wingtip vortex and airflow downwash angle .

该文研究结果可以为大型飞机的增升装置地面效应设计提供参考依据。

The results of the simulation may provide a theoretical basis for the design of height lift devices of large aircraft in ground effect .

地面效应是飞行器近地飞行、起飞着陆时必然遇到的现象。

The ground effect is a phenomenon that the airplane or other flying vehicles will encounter during the flight near the surface or the takeoff and landing .

然后，着重评述现有两种典型地面效应试飞方法的优缺点及其实施中的技术问题。

Then , the advantage and shortcoming of two recent methods of flight test for ground effect , and the technical problems in implementation , are review emphatically .

升力系数的减小主要是由于地面效应引起流场改变，下翼面压力的增加量小于上翼面吸力的减小量引起；

The cause of the reduction of lift lies in that , the losses of suction at upper surface are more than the increases of pressure at lower surface .