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空气动力学论文结语

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空气动力学论文结语

答案:空气动力学对钱学森研究科学作用很大。  1、钱学森是冯·卡门教授的得意门生。在卡门的指导下,钱学森写出了有关高速空气动力学方面的博士论文。1943年,美国军方经过慎重的选择,委托钱学森同马林纳合作,研究用火箭发动机推进导弹这一重大军事课题。  2、第二次世界大战结束时,美国空军高度赞扬钱学森对战争的胜利做出了“巨大的贡献”,“无法估价的贡献”。美国专栏作家密尔顿·维奥斯特认为,钱学森已是“制定使美国空军从螺旋桨式向喷气式飞机过渡,并最后向遨游太空无人航天器过渡的长远规划的关键人物”,“是帮助美国成为世界第一流军事强国的科学家银河中一颗明亮的星”。  3、1947年,经冯·卡门推荐,钱学森成了加州理工学院最年轻的终身教授。自1949年下半年开始,他肩负起该学院“古根海姆喷气推进研究中心”主任的职务,领导研究生的研究和教学工作。那时,年仅37岁的钱学森,已被世界公认为力学界和应用数学界的权威和流体力学研究的开路人之一,是卓越的空气动力学家、现代航空科学与火箭技术的先驱、工程控制论的创始人。

空气动力学论文

这么高深的问题啊。你是航天航空的么?真的好难写的啊。你可以找个seek68账号下载的。望采纳。

写论文?

空气动力学论文英文

你是要英文 还是翻译? 如果是翻译 原文呢?Automotive aerodynamics is the study of the aerodynamics of road The main concerns of automotive aerodynamics are reducing drag (though drag by wide wheels is dominating most cars), reducing wind noise, minimising noise emission, and preventing undesired lift forces and other causes of aerodynamic instability at high For some classes of racing vehicles, it may also be important to produce desirable downwards aerodynamic forces to improve traction and thus cornering An aerodynamic automobile will integrate the wheel arcs and lights in its shape to have a small It will be streamlined, for example it does not have sharp edges crossing the wind stream above the windshield and will feature a sort of tail called a fastback or Kammback or Note that the Aptera 2e, the Loremo, and the Volkswagen 1-litre car try to reduce the area of their It will have a flat and smooth floor to support the Venturi effect and produce desirable downwards aerodynamic The air that rams into the engine bay, is used for cooling, combustion, and for passengers, then reaccelerated by a nozzle and then ejected under the For mid and rear engines air is decelerated and pressurized in a diffuser, loses some pressure as it passes the engine bay, and fills the These cars need a seal between the low pressure region around the wheels and the high pressure around the They all have a closed engine bay The suspension is either streamlined (Aptera) or Door handles, the antenna, and roof rails can have a streamlined The side mirror can only have a round fairing as a Air flow through the wheel-bays is said to increase drag (German source) though race cars need it for brake cooling and a lot of cars emit the air from the radiator into the wheel Automotive aerodynamics differs from aircraft aerodynamics in several First, the characteristic shape of a road vehicle is much less streamlined compared to an Second, the vehicle operates very close to the ground, rather than in free Third, the operating speeds are lower (and aerodynamic drag varies as the square of speed) Fourth, a ground vehicle has fewer degrees of freedom than an aircraft, and its motion is less affected by aerodynamic Fifth, passenger and commercial ground vehicles have very specific design constraints such as their intended purpose, high safety standards (requiring, for example, more 'dead' structural space to act as crumple zones), and certain Roads are also much worse (smoothness, debris) than the average Lastly, car drivers are vastly under-trained compared to pilots, and usually will not drive to maximize Automotive aerodynamics is studied using both computer modelling and wind tunnel For the most accurate results from a wind tunnel test, the tunnel is sometimes equipped with a rolling This is a movable floor for the working section, which moves at the same speed as the air This prevents a boundary layer forming on the floor of the working section and affecting the An example of such a rolling road wind tunnel is Wind Shear's Full Scale, Rolling Road, Automotive Wind Tunnel built in 2008 in Concord, North C

空气动力学:Aerodynamics | air mechanics | gas dynamics | aerodynamical =aerodynamic aerodynamics

空气动力学报

发的是什么类别的期刊,可以上国家新闻总署查询的。

你要看你是找哪个专业的或者哪个方向的??

这个级别的范围有点广阔,你要哪类的这样好说点

空气动力学论文2000字

这么高深的问题啊。你是航天航空的么?真的好难写的啊。你可以找个seek68账号下载的。望采纳。

(一)主题的写法[2]毕业论文只能有一个主题(不能是几块工作拼凑在一起),这个主题要具体到问题的基层(即此问题基本再也无法向更低的层次细分为子问题),而不是问题所属的领域,更不是问题所在的学科,换言之,研究的主题切忌过大。因为涉及的问题范围太广,很难在一本硕士学位论文中完全研究透彻。通常,硕士学位论文应针对某学科领域中的一个具体问题展开深入的研究,并得出有价值的研究结论。(二)题目的写法毕业论文题目应简明扼要地反映论文工作的主要内容,切忌笼统。由于别人要通过你论文题目中的关键词来检索你的论文,所以用语精确是非常重要的。论文题目应该是对研究对象的精确具体的描述,这种描述一般要在一定程度上体现研究结论,因此,我们的论文题目不仅应告诉读者这本论文研究了什么问题,更要告诉读者这个研究得出的结论。(三)摘要的写法毕业论文的摘要,是对论文研究内容的高度概括,其他人会根据摘要检索一篇硕士学位论文,因此摘要应包括:对问题及研究目的的描述、对使用的方法和研究过程进行的简要介绍、对研究结论的简要概括等内容。摘要应具有独立性、自明性,应是一篇完整的论文。(四)引言的写法一篇毕业论文的引言,大致包含如下几个部分:1、问题的提出;2、选题背景及意义;3、文献综述;4、研究方法;5、论文结构安排。

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