aerodynamic drag

简明释义

空气动力阻力

英英释义

例句

1.Engineers study aerodynamic drag 空气动力学阻力 when designing aircraft to ensure they can fly efficiently.

工程师在设计飞机时研究空气动力学阻力 aerodynamic drag，以确保它们能高效飞行。

2.The design of modern cars aims to reduce aerodynamic drag 空气动力学阻力 for better fuel efficiency.

现代汽车的设计旨在减少空气动力学阻力 aerodynamic drag以提高燃油效率。

3.Reducing aerodynamic drag 空气动力学阻力 is crucial for increasing the speed of racing cars.

减少空气动力学阻力 aerodynamic drag对提高赛车速度至关重要。

4.Cyclists often wear tight-fitting clothing to minimize aerodynamic drag 空气动力学阻力 during races.

骑自行车的人在比赛中通常穿着紧身衣，以最小化空气动力学阻力 aerodynamic drag。

5.The shape of a rocket is designed to minimize aerodynamic drag 空气动力学阻力 during launch.

火箭的形状被设计为在发射过程中最小化空气动力学阻力 aerodynamic drag。

作文

Aerodynamics is a branch of physics that deals with the behavior of air as it interacts with solid objects, such as cars, airplanes, and even buildings. One of the most significant concepts in aerodynamics is aerodynamic drag, which refers to the resistance experienced by an object as it moves through the air. This resistance can greatly affect the performance and efficiency of vehicles, making it a crucial factor in design and engineering.When we think about aerodynamic drag, we must consider two main types: form drag and skin friction. Form drag is caused by the shape of the object and how it disrupts the airflow around it. For example, a streamlined car or airplane is designed to minimize this type of drag by having a sleek and smooth surface that allows air to flow more easily. On the other hand, a boxy or irregularly shaped object will experience higher form drag due to the turbulence created as air flows over its surface.Skin friction, on the other hand, occurs due to the interaction between the surface of the object and the air molecules. The smoother the surface, the less skin friction there will be. This is why many high-performance vehicles are coated with special materials that reduce roughness and enhance their aerodynamic properties. Engineers and designers work tirelessly to reduce both types of aerodynamic drag in order to improve fuel efficiency and overall performance.In the world of motorsports, understanding aerodynamic drag is essential for success. Racing teams invest heavily in wind tunnel testing to analyze how their vehicles interact with air at high speeds. By fine-tuning the design of their cars, they can achieve better downforce and reduced drag, allowing them to go faster while using less fuel. This not only gives them a competitive edge but also aligns with the growing emphasis on sustainability in the sport.Beyond racing, aerodynamic drag plays a critical role in aviation. Airplanes are meticulously designed to minimize drag during flight. The wings, fuselage, and tail are all shaped to ensure that air flows smoothly around them, reducing resistance and allowing for greater fuel efficiency. Airlines are constantly seeking ways to optimize their fleets, and understanding aerodynamic drag is key to achieving this goal.In conclusion, aerodynamic drag is a fundamental concept in the study of aerodynamics that has far-reaching implications in various fields, from automotive design to aviation. By minimizing this resistance, engineers and designers can enhance the performance and efficiency of vehicles, ultimately leading to faster speeds and lower fuel consumption. As technology continues to advance, the understanding and management of aerodynamic drag will remain a vital area of focus for innovation and sustainability in transportation. Understanding this concept not only helps in improving designs but also contributes to broader environmental goals by promoting energy efficiency in our vehicles. Therefore, grasping the principles behind aerodynamic drag is essential for anyone involved in engineering or design disciplines today.

空气动力学是物理学的一个分支，研究空气与固体物体（如汽车、飞机甚至建筑物）相互作用时的行为。在空气动力学中，一个重要的概念是aerodynamic drag（空气阻力），它指的是物体在空气中移动时所经历的阻力。这种阻力会极大地影响车辆的性能和效率，因此在设计和工程中是一个至关重要的因素。当我们考虑aerodynamic drag时，必须考虑两种主要类型：形状阻力和表面摩擦。形状阻力是由物体的形状造成的，它会干扰周围的气流。例如，流线型的汽车或飞机设计旨在通过具有光滑的表面来最小化这种阻力，从而使空气更容易流动。另一方面，方形或不规则形状的物体由于空气流过其表面时产生的湍流，会经历更高的形状阻力。表面摩擦则是由于物体的表面与空气分子之间的相互作用而产生的。表面越光滑，表面摩擦就越小。这就是为什么许多高性能车辆涂有特殊材料以减少粗糙度并增强其空气动力学特性的原因。工程师和设计师不断努力减少这两种类型的aerodynamic drag，以提高燃油效率和整体性能。在赛车运动中，理解aerodynamic drag对成功至关重要。赛车队在风洞测试中投入大量资金，以分析他们的车辆在高速行驶时与空气的相互作用。通过微调汽车的设计，他们可以实现更好的下压力和减少的阻力，从而在使用更少燃料的情况下行驶得更快。这不仅为他们提供了竞争优势，还符合该运动日益重视可持续发展的趋势。除了赛车，aerodynamic drag在航空领域也扮演着关键角色。飞机的设计经过精心考虑，以最大限度地减少飞行过程中的阻力。机翼、机身和尾部的形状都经过优化，以确保空气在其周围平稳流动，从而减少阻力，提高燃油效率。航空公司不断寻求优化其机队的方法，而理解aerodynamic drag是实现这一目标的关键。总之，aerodynamic drag是空气动力学研究中的一个基本概念，在汽车设计、航空等多个领域都有深远的影响。通过最小化这种阻力，工程师和设计师可以提高车辆的性能和效率，最终实现更快的速度和更低的燃油消耗。随着技术的不断进步，对aerodynamic drag的理解和管理将继续成为交通运输创新和可持续发展的重要关注领域。理解这一概念不仅有助于改善设计，还有助于促进更广泛的环境目标，通过推动我们车辆的能源效率。因此，掌握aerodynamic drag背后的原理对于今天参与工程或设计学科的任何人来说都是至关重要的。