英语翻译Basically,the airfoil shape serves two closely interrela

英语翻译
Basically,the airfoil shape serves two closely interrelated functions.The first,obviously,is to obtain the maximum lifting force.Secondly,the shape of the airfoil is intended to permit the wing to move through the air with as little resistance as possible:it is the best shape for the work it has to do.In the language of the aeronautical engineer the efficiency of an airfoil,with regard to these two functions,is expressed in terms of the "lift-drag ratio".An airfoil with the best lift-drag ratio for a particular aircraft is simply the one that furnishes the greatest lift with the least resistance (drag) to the airflow.
Surprisingly,this very special airfoil shape,as well as many of the other aerodynamic shapes used in aircraft design,have frequently been determined more by trial and error than anything else.This helps to explain why elaborate wind tunnels and extremely accurate scale models are so important to aerodynamic research.Obviously,if it is necessary to test endless combinations of shapes and curves you must have some way to duplicate the interaction between the airflow and the shape without building a whole new wing or rotor for every experiment.
今晚他过来 1年前 已收到4个回答 举报

铭刻在心 幼苗

共回答了17个问题采纳率:94.1% 举报

Basically,the airfoil shape serves two closely interrelated functions.The first,obviously,is to
基本来说,机翼的外形提供了两种比较接近的相关功能.首先,很明显是
obtain the maximum lifting force.Secondly,the shape of the airfoil is intended to permit the
获得最大升力.其次,机翼的外形是有意这样设计以便机翼
wing to move through the air with as little resistance as possible:it is the best shape for the
能使通过的空气阻力尽可能的减少;这是最好的形状.
work it has to do.In the language of the aeronautical engineer the efficiency of an airfoil,with
在航空工程师的机翼功效的术语中,
regard to these two functions,is expressed in terms of the "lift-drag ratio".An airfoil with the
关于这两种功能,被表达为术语“升阻比”.
best lift-drag ratio for a particular aircraft is simply the one that furnishes the greatest lift with
对于一个特殊的航空器来说,具有最佳升阻比的机翼只不过就是,气流阻力最小,提供
the least resistance (drag) to the airflow.
最大的升力.
Surprisingly,this very special airfoil shape,as well as many of the other aerodynamic shapes
令人惊讶的是,这种非常特殊的机翼形状,以及许多在航空器设计中使用的
used in aircraft design,have frequently been determined more by trial and error than anything
其他空气动力学形状,与其他的相比,更经常被反复试验来确定下来.
else.This helps to explain why elaborate wind tunnels and extremely accurate scale models
这有助于解释为什么精心制作的风洞及极其精确比例的模型
are so important to aerodynamic research.Obviously,if it is necessary to test endless
对于空气动力学研究来说如此重要.很明显,如果有必要测试无穷多的形状和曲面的组件,
combinations of shapes and curves you must have some way to duplicate the interaction
你必须有许多方法来复制气流和形状间的交互作用
between the airflow and the shape without building a whole new wing or rotor for every experiment.
而不用为每次试验来制作一个完整的新机翼或回转体

1年前

4

weng_abcd 幼苗

共回答了269个问题 举报

……第一,显然,是获得最大提升力。……

1年前

2

娜8888 幼苗

共回答了26个问题 举报

基本上,机翼的形状有两个有关联的作用。第一个是显而易见的为了获得最大的上升动力。而第二个是目的是使翼身通过空气是的阻力尽可能的小:这是对它将要做的工作来说最佳的形状。在航空工程的术语里,机翼螺旋浆的功效通过比较以上两个作用效果被表示做“升阻比”。一架有这高升阻比机翼的飞机通常都有很高的起重力和很低的气流阻力。
值得一提的是,这种特殊的机翼形状也像和其他许多在飞机设计中使用的航空动力...

1年前

1

bridgexie 幼苗

共回答了19个问题 举报

基本上,机翼形状密切相关功能服务。第一,显然,是获得最大提升力。其次,形状的机翼,机翼的目的是允许移动通过空气阻力尽可能小:这是最好的形状的工作已经做。在语言的航空工程师的效率,翼型,关于这些功能,是表示“升阻比”。机翼的升阻比最好的特定飞机仅仅是一个提供最大升力与阻力(阻力)的气流。令人惊讶的是,这个非常特殊的机翼形状,以及许多其他气动外形设计飞机,经常被确定更多的试验和错误,比其他任何事情。这...

1年前

0
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