drag lift

Simulation of drag and lift coefficients on two cylinders in flow field with turbulence model

湍流模型下双柱绕流升阻力系数数值模拟

Domain decomposition method for the calculation of circular cylinder drag and lift in flows

分块法研究圆柱绕流升阻力

Drag and lift forces on square arrays of pile groups in subcritical flow

亚临界流对于方阵群桩的阻力及升力

Between these two regions , the drag and lift coefficients keep constant with the relative position .

介于上述区域之间时，近似认为拖曳力系数和上举力系数不随相对位置变化。

The aerodynamic drag and lift of javelin increase with angle of attack .

标枪的气动阻力、升力随迎角增加而增加。

Rory : When drag exceeds lift , the plane will land .

当阻力大于上升力的时候，飞机就会降落。

You got to be familiar with airfoil , drag , lift , and thrust ,

得先了解螺旋浆拉升俯冲推进等等

Drag and Lift Forces Acting on Rotational Nonspherical Particles

非球形颗粒的阻力系数与升力系数的数值求解

The relationship between the fluctuating drag and lift pressures in the turbulent area within a flow duct is given .

在管道通风系统中的湍流区内，震荡波动的阻力气压与推力气压之间的关系已被阐述。

The Drag and Lift Forces of Flexible Circular Cylinders in Tandem Arrangement in ware-Current Flow

串列弹性圆柱在波流联合场中的阻力和升力

Effects of the inter-phase momentum exchange were examined with the emphasis on the influence of drag and lift forces .

通过对气泡和液体在流场中的受力分析，详细讨论了阻力、升力等相间作用力对气泡分布和流体流动的影响。

Design elements include the drag and lift control technology , Huoti control system software and hardware design , communications systems , Huoti monitoring components .

设计内容包括电梯的拖动和控制技术，货梯控制系统的软硬件设计，系统通讯，货梯的监控等组成部分。

The results show that : ( 1 ) The mean drag and lift coefficients of box shape bridge deck section have considerable Reynolds number effect ;

流线型桥梁断面的阻力系数、升力系数都有明显的雷诺数效应。

This analysis predicted not only the flow patterns for different conditions but also the drag and lift forces exerted by the fluid on the cylinder as well .

该计算不仅预测了不同条件下的流动特性，而且预测了流体作用在圆柱上的曳力和升力。

The fluctuate drag and lift forces of tree branches in wind due to vortex shedding were estimated using the vortex induced vibration theory of circular cylinder .

采用圆柱绕流的涡致振动理论估算了树枝在风中因旋涡脱落而引起的脉动升力和阻力；

All the calculated drag and lift force coefficients , the separation positions , and the pressure distributions on the cylinder surface are agreed well with the theoretical and experimental results .

计算所得升阻系数、分离点的位置以及压力分布与理论和实验结果相符。

The aerodynamic drag , lift and pitching moment of the maglev train increase with the train speed . However , the magnitude of the increase varies with different calculation models .

随着车速的提高，气动阻力、升力和俯仰力矩均有较大幅度提高，不同的计算模型其提高幅度是不一样的。

Due to cavitation , the pressure distribution around the foil is unsteady , the drag and lift forces are randomly changed , which were the main reasons leading to environment noise and mechanical loss .

由于空化的产生，翼型表面压力分布不稳定，导致升力、阻力和流场压力出现波动，这是实际中产生噪声和损失的主要原因。

The results show that the drag and lift forces oscillate for Reynolds numbers greater than 80 . The calculated Strouhal number , a parameter characterizing the oscillations , agrees well with established results .

结果显示，当Re大于80时，圆柱所受曳力和升力开始振荡。计算所得的脱落频率（Sr）与前人的结果吻合良好。

Characteristics of wakes have great effects on the aerodynamic drag and lift of sedans . It is noticeable that the flow around the basic body shape is complicated by the presence of the rotating wheels .

尾流场特性与车辆的气动阻力和气动升力密切相关，而基本形体周围的流动特性由于旋转车轮的存在变得非常复杂。

The drag , lift performance of mono-hull and ship with T-foil were calculated by FLUENT which is the commercial software of CFD . And the flow field details around these ships were captured .

本文采用商用CFD软件FLUENT计算三体船裸船体、T型翼和安装了T型翼三体船的阻力、升力性能，并捕捉周围流场细节。

The effect of inter-phase drag , lift force and virtual quality force are considered in the momentum source of dust diffusion model . The effect of buoyancy is considered in the momentum equation of the CO transport model .

在粉尘扩散模型的动量源项中考虑了相间曳力、升力和虚拟质量力的作用，在CO运移模型的动量方程中考虑了浮力的影响。

In this paper , 10 typical super-tall building models were tested in a wind tunnel to measure the mean and fluctuating wind pressure distributions . The mean and RMS coefficients of the drag , lift and torsion momemt on the measuring layers were then obtained from the wind pressures .

本文对10个典型的超高层建筑刚性模型进行了测量表面风压的风洞试验，获得了各测量层的阻力、升力和扭矩系数的平均值和根方差。

Discussion on drag coefficient and lift coefficient of saltation particles in air flow

气流中颗粒阻力系数和升力系数讨论

The simulation is focused on three-dimensional flow characteristics and variation of drag coefficient , lift coefficient and Strouhal number with different Reynolds .

着重研究了三维圆柱的阻力系数、升力系数和斯脱罗哈数随Re数的变化规律及其三维流动特性。

In theory , oblique elliptic wing with an elliptic load has the minimum wave drag due to lift and induced drag .

理论分析表明，具有椭圆载荷分布的斜置椭圆机翼有最小的升致波阻和诱导阻力。

The technical measures mainly contain reducing drag and increasing lift . Ultimately , the aerodynamic layout design of autogiro high-speed scheme is completed .

通过研究分析，采取减阻、增升等技术措施，最终完成了旋翼机高速型方案的气动布局设计。

The joined-wing configuration , as compared with the normal configuration , is characterized by low structural weight , small induced drag , big lift coefficient and good stability .

联结翼布局与常规布局相比具有结构重量轻、诱导阻力小、升力系数大和稳定性良好的特点。

High-speed aircraft usually employ thin , low-drag , low-lift airfoils ; slow aircraft that carry heavy loads use thicker airfoils with high drag and high lift .

高速飞机通常采用低阻力、低升力的流线型薄翼型，载重量大的低速飞机使用高阻力、高升力的厚翼型。

Comparison between normalized spectra of drag force and lift force is made , it shows drag force spectra is relatively broad-band , and lift force spectra is relatively narrow-band . 4 .

通过比较标准化后的阻力和升力谱，发现阻力谱为相对宽带谱，而升力受涡脱落影响更为严重，呈现相对窄带谱的形式。