angle of attack

简明释义

进水角

英英释义

例句

1.A higher angle of attack can lead to a stall if it exceeds the critical limit.

较高的攻角如果超过临界值可能导致失速。

2.The pilot adjusted the angle of attack to optimize lift during takeoff.

飞行员调整了攻角以优化起飞时的升力。

3.Engineers study the angle of attack during wind tunnel tests to improve aircraft design.

工程师在风洞测试中研究攻角以改善飞机设计。

4.The angle of attack is crucial for determining the performance of a glider.

对于滑翔机的性能来说，攻角至关重要。

5.During a climb, pilots must monitor the angle of attack to avoid stalling.

在爬升过程中，飞行员必须监控攻角以避免失速。

作文

The concept of the angle of attack is crucial in the field of aerodynamics. It refers to the angle between the chord line of an airfoil, such as a wing, and the oncoming airflow. Understanding this angle is essential for pilots and engineers alike, as it directly affects the lift and drag experienced by an aircraft during flight. When the angle of attack increases, the lift generated by the wing also increases, up to a certain point. However, if the angle becomes too steep, the airflow can separate from the wing's surface, leading to a stall. This phenomenon occurs when the angle of attack exceeds the critical angle, which varies depending on the shape and design of the wing. In practical terms, managing the angle of attack is vital for safe flying. Pilots must be trained to recognize the signs of an impending stall, such as a decrease in lift and an increase in drag. They learn to adjust their flight path and control inputs to maintain an optimal angle of attack that ensures adequate lift without risking a stall. For instance, during takeoff and landing, pilots often increase the angle of attack to maximize lift at lower speeds. This technique allows for shorter takeoff distances and safer landings.Moreover, the angle of attack is not only significant in aviation but also in other fields such as automotive design and sports engineering. In motorsport, understanding the angle of attack of a car's aerodynamic components can lead to better performance on the track. Engineers analyze how different angles impact downforce and drag, optimizing the vehicle's design for speed and stability.In sports like skiing or cycling, athletes also consider the angle of attack of their bodies relative to the ground or the air. A skier may adjust their body position to maintain an ideal angle of attack against the wind, enhancing their speed and control. Similarly, cyclists can benefit from understanding how their posture affects their aerodynamic profile, allowing them to reduce drag and improve their performance.In conclusion, the angle of attack is a multifaceted concept that extends beyond aviation into various domains. Its implications are profound, influencing everything from aircraft safety to the performance of race cars and athletes. By mastering the principles surrounding the angle of attack, professionals across different industries can enhance their effectiveness and achieve greater success in their respective fields. As technology continues to evolve, the study of the angle of attack will remain integral to advancements in design and performance optimization.

攻角的概念在空气动力学领域至关重要。它指的是翼型的弦线与来流之间的角度。理解这个角度对飞行员和工程师来说都是必不可少的，因为它直接影响到飞机在飞行过程中所受到的升力和阻力。当攻角增加时，机翼产生的升力也会增加，直到某个点为止。然而，如果角度变得过于陡峭，气流可能会从机翼表面分离，导致失速。这种现象发生在攻角超过临界角度时，而临界角度因机翼的形状和设计而异。从实际角度来看，管理攻角对于安全飞行至关重要。飞行员必须接受培训，以识别即将失速的迹象，例如升力减少和阻力增加。他们学习调整飞行路径和控制输入，以保持最佳的攻角，从而确保足够的升力而不冒失速的风险。例如，在起飞和着陆期间，飞行员通常会增加攻角，以最大化低速下的升力。这种技术可以缩短起飞距离并提高着陆的安全性。此外，攻角不仅在航空领域重要，在汽车设计和体育工程等其他领域也同样重要。在赛车运动中，了解汽车空气动力学部件的攻角可以提升赛道上的表现。工程师分析不同角度对下压力和阻力的影响，优化车辆设计以实现速度和稳定性的平衡。在滑雪或骑行等运动中，运动员也会考虑他们身体相对于地面或空气的攻角。滑雪者可能会调整他们的身体姿势，以保持理想的攻角，增强他们的速度和控制能力。类似地，骑自行车的人可以通过理解他们的姿势如何影响空气动力学轮廓来获益，从而减少阻力，提高表现。总之，攻角是一个多层次的概念，不仅限于航空，还延伸到多个领域。它的影响深远，从飞机安全到赛车和运动员的表现都受到影响。通过掌握围绕攻角的原理，各行业的专业人士可以提高他们的效率，并在各自的领域取得更大的成功。随着技术的不断发展，攻角的研究将继续在设计和性能优化的进步中占据重要位置。