aerodynamic lift

简明释义

空气动力升力

英英释义

例句

1.The design of the airplane wings is crucial for generating aerodynamic lift.

飞机机翼的设计对于产生空气动力学升力至关重要。

2.The shape of a bird's wings directly affects its aerodynamic lift during flight.

鸟类翅膀的形状直接影响其飞行中的空气动力学升力。

3.When the angle of attack is increased, aerodynamic lift also increases until a certain point.

当迎角增加时，空气动力学升力也会增加，直到某个点。

4.In order to achieve maximum aerodynamic lift, pilots must understand the principles of flight.

为了实现最大的空气动力学升力，飞行员必须理解飞行原理。

5.Engineers study aerodynamic lift to improve the efficiency of modern aircraft.

工程师研究空气动力学升力以提高现代飞机的效率。

作文

The concept of aerodynamic lift has fascinated engineers and scientists for decades. It is the force that allows an aircraft to rise off the ground and soar through the sky. Understanding how aerodynamic lift works is crucial for designing efficient and safe flying machines. In essence, aerodynamic lift is generated when air flows over and under the wings of an aircraft, creating a difference in pressure. This difference in pressure results from the shape and angle of the wings, known as the airfoil design.When an airplane moves forward, its wings cut through the air. The air traveling over the top of the wing moves faster than the air beneath it. According to Bernoulli's principle, faster-moving air has lower pressure. Consequently, the pressure on the top of the wing is less than the pressure on the bottom, resulting in an upward force known as aerodynamic lift.This upward force is essential for takeoff and landing. Pilots must understand how to manipulate the angle of attack—the angle between the wing and the oncoming air—to optimize aerodynamic lift. Too steep of an angle can lead to a stall, where the airflow separates from the wing, causing a loss of lift. Conversely, too shallow of an angle may not generate enough lift for the aircraft to ascend.In addition to the angle of attack, the speed of the aircraft plays a significant role in generating aerodynamic lift. As the speed increases, the airflow over the wings becomes more pronounced, enhancing the lift force. This is why pilots need to reach a certain speed before attempting to take off; without sufficient speed, the wings cannot generate adequate aerodynamic lift.Moreover, different types of aircraft require varying designs to achieve optimal aerodynamic lift. For example, a commercial airliner has large, wide wings to create substantial lift at lower speeds, while a fighter jet features shorter, more angular wings optimized for speed and maneuverability. Each design reflects the specific needs and purposes of the aircraft.Understanding aerodynamic lift is not only important for aviation but also has implications in other fields, such as automotive design and sports engineering. For instance, race cars are designed with aerodynamic principles in mind to minimize drag and maximize downforce, which is a form of lift that keeps the car grounded at high speeds. Similarly, athletes use aerodynamic gear to enhance performance by reducing air resistance.In conclusion, aerodynamic lift is a fundamental concept that underpins the science of flight. Its principles are applied across various industries, demonstrating the importance of understanding how forces interact in our environment. As technology advances, the study of aerodynamic lift will continue to evolve, leading to innovations that improve safety and efficiency in air travel and beyond.

“气动升力”这一概念吸引了工程师和科学家数十年的关注。它是使飞机能够离开地面并在空中翱翔的力量。理解“气动升力”的工作原理对于设计高效且安全的飞行器至关重要。从本质上讲，“气动升力”是在空气流过飞机机翼的上方和下方时产生的，这种流动造成了压力差。这种压力差源于机翼的形状和角度，被称为气动外形设计。当飞机向前移动时，其机翼切割空气。流经机翼顶部的空气速度比下面的空气快。根据伯努利原理，流速较快的空气具有较低的压力。因此，机翼顶部的压力低于底部的压力，产生了向上的力，称为“气动升力”。这种向上的力量对于起飞和着陆至关重要。飞行员必须了解如何操控迎风角，即机翼与来流空气之间的角度，以优化“气动升力”。角度过陡可能导致失速，即气流从机翼分离，导致升力丧失。相反，角度过平可能无法产生足够的升力使飞机上升。除了迎风角，飞机的速度在产生“气动升力”中也起着重要作用。随着速度的增加，机翼上的气流变得更加明显，从而增强升力。因此，飞行员需要在尝试起飞之前达到一定的速度；没有足够的速度，机翼无法产生足够的“气动升力”。此外，不同类型的飞机需要不同的设计以实现最佳的“气动升力”。例如，商用客机拥有大型宽翼，以在较低速度下产生大量升力，而战斗机则采用较短、更具角度的机翼，以优化速度和机动性。每种设计都反映了飞机的特定需求和用途。理解“气动升力”不仅对航空业重要，还对其他领域如汽车设计和体育工程有影响。例如，赛车在设计时考虑气动原理，以最小化阻力并最大化下压力，而下压力是一种保持赛车在高速行驶时贴地的升力形式。同样，运动员使用气动装备来提高表现，减少空气阻力。总之，“气动升力”是支撑飞行科学的基本概念。其原理被应用于各个行业，展示了理解我们环境中力量相互作用的重要性。随着技术的进步，对“气动升力”的研究将继续发展，带来改善航空旅行及其他领域安全性和效率的创新。