查询词典 aerodynamic

The aerodynamic characteristics of low Reynolds number, and the influence to laminar separation bubble and lift-drag ratio are analyzed.

分析了低雷诺数小型飞机的空气动力特性，包括对升阻比和分离气泡的影响。

Then, in the selection of nearly landing stage in weight landing events as the research object, based on the aerodynamic characteristics, from the initial approach to finally landed on heavy multiple grounding landed on a detailed analysis of causes, and put forward corresponding solutions of manipulation and Suggestions.

然后，在选取进近着陆阶段中的重着陆事件为研究对象，基于飞机飞行的空气动力特性，从初始进近到最后接地着陆多个角度对重着陆成因进行详细分析描述，以及提出各种相应的解决方案和操纵建议。

The linear aerodynamic forces of airship hull were calculated by Allen viscous cross flow theory.

根据势流理论对飞艇艇身线性气动力进行分析计算，由于飞艇艇体是旋成体，故根据Allen的横流阻力理论对其所受的非线性气动力进行计算；

The simulation results of the blade root load and the power curve of aerodynamic performance on the wind turbine are obtained.

使用这些全攻角翼型气动性能数据，在Bladed软件中建立风电机组的叶片模型，分析计算该叶片的气动性能、整机功率曲线等性能。

In order to meet the need of our country railroad's development, lucubration of tunnel aerodynamic effect's spread abroad rules and corresponding alleviation measure is very necessary.

为了适应我国铁路发展的需要，有必要对隧道空气动力学效应的规律及其减缓措施进行深入研究。

In this paper, the direct simulation Monte Carlo method is employed to simulate flows of modeled air vehicles having simple geometric shape such as delta wing at a Knudsen number between 0.001 and 0.1 for various Mach number and angle of attack conditions. With the calculated aerodynamic forces and heating, we obtained the general behavior of the rarefied gas effects on the vehicles' aerodynamics.

本文采用直接模拟 Monte Carlo 方法，模拟了简单外型如三角翼形的模型飞行器在努森数为 0.001到 0.1的范围内以不同来流马赫数和不同飞行攻角飞行时的流场，计算了飞行器所受到的气动力和气动热，获得了稀薄气体效应对飞行器气动性能影响的一般规律。

The commercial CFD software Fluent was used for simalation of aerodynamic charactirestics of some terminal guided munitions in terminal segment under different affack anyle and mach, the variation lav of or lift coeflienct, drag coeflient and roll moment coefficient with flight mach and attacls angle was obtained, The semulation result shows the caculated aerodynarve parameters can be referend to high accuracy firing table for the terminal guided projectile.

文中主要利用商业CFD软件Fluent对某型末制导炮弹的末制导段在不同攻角、不同飞行马赫数的气动特性进行了数值仿真，得出了该型末制导炮弹升力系数、阻力系数和滚转力矩系数随飞行马赫数和攻角的变化规律。结果表明，计算所得气动参数可以为该末制导炮弹编制高精度射表提供数据依据和参考。

The analytical results showed that Reynolds number and Mach number have a rather obvious effect on airfoil aerodynamic performances.

分析结果表明：雷诺数和马赫数对翼型气动性能有较大的影响。

The main reasons caused aerodynamic drag is clarified.

得到了汽车的风阻系数，清楚地了解了外流场特点和气动特性。

The challenge is to make a light, highly aerodynamic vehicle that's reliable, crash-worthy and, most important, inexpensive to mass-produce.

值得挑战的是制造一辆轻便流线型的交通工具，它可靠，安全，最重要的是，便宜以易于批量生产。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。