after propeller

简明释义

后推进器

英英释义

例句

1.The performance of the boat improved after propeller cleaning.

船的性能在清洗螺旋桨后提高了。

2.Fuel efficiency was better after propeller replacement.

在更换螺旋桨后，燃油效率更好。

3.The ship's speed increased significantly after propeller was upgraded.

船只的速度在更换螺旋桨后显著提高。

4.We noticed a lot less noise after propeller adjustments were made.

在调整螺旋桨后，我们注意到噪音减少了很多。

5.The crew reported smoother sailing after propeller maintenance.

船员报告说在维护螺旋桨后航行更加平稳。

作文

The concept of an aircraft's propulsion system is fascinating and complex. One critical component in this system is the propeller, which plays a vital role in generating thrust. When discussing the mechanics of flight, one often encounters the phrase after propeller, which refers to the area behind the propeller where the airflow is influenced by the rotating blades. This region is crucial for understanding how thrust is generated and how it affects the overall performance of the aircraft. In essence, the after propeller zone is where the aerodynamic effects of the propeller can be observed, including changes in pressure and velocity of the air flowing over the wings and fuselage.To fully grasp the significance of the after propeller area, it is essential to consider the principles of aerodynamics. As the propeller spins, it accelerates the air behind it, creating a low-pressure zone that pulls the aircraft forward. This action leads to a phenomenon known as 'wake turbulence,' which can have varying effects on other aircraft flying nearby. Pilots must be aware of these dynamics, especially during takeoff and landing phases, when the aircraft is most vulnerable to disturbances caused by the after propeller effects of preceding aircraft.Moreover, the design of the propeller itself can influence the characteristics of the after propeller airflow. Different blade shapes, sizes, and pitches can alter how efficiently the propeller generates thrust and how the air behaves once it leaves the propeller's influence. Engineers spend countless hours testing and refining propeller designs to optimize performance at various speeds and altitudes, ensuring that the after propeller airflow contributes positively to the aircraft's stability and control.In addition to its impact on thrust generation, the after propeller region also plays a crucial role in noise production. The interaction between the rotating blades and the surrounding air can create significant noise, which is a concern for both passengers and those living near airports. Understanding the factors that contribute to noise in the after propeller zone enables engineers to develop quieter propulsion systems, improving the overall flying experience.Furthermore, the after propeller dynamics are not limited to fixed-wing aircraft. Helicopters, for instance, experience similar phenomena in their rotor wash, where the air movement generated by the rotors affects the surrounding environment. Pilots must account for these effects when maneuvering, particularly in confined spaces or during hover operations.In conclusion, the term after propeller encapsulates a vital aspect of aerodynamics that is fundamental to the operation of many types of aircraft. Understanding the implications of this region allows pilots, engineers, and aviation enthusiasts to appreciate the complexities of flight. As technology advances and new propulsion systems are developed, the study of the after propeller effects will continue to be an essential area of research, helping to enhance safety, efficiency, and comfort in air travel.

飞机推进系统的概念令人着迷且复杂。该系统中的一个关键组件是螺旋桨，它在产生推力方面发挥着重要作用。在讨论飞行机制时，人们常常会遇到短语after propeller，它指的是螺旋桨后方的区域，在该区域内，气流受到旋转叶片的影响。这个区域对于理解推力的生成及其对飞机整体性能的影响至关重要。实际上，after propeller区域是观察螺旋桨的空气动力学效应的地方，包括气压和流经机翼与机身的空气速度变化。要充分理解after propeller区域的重要性，必须考虑空气动力学原理。当螺旋桨旋转时，它加速后方的空气，形成一个低压区，拉动飞机向前。这一动作导致了所谓的“尾流湍流”现象，这对在附近飞行的其他飞机可能产生不同的影响。飞行员必须意识到这些动态，特别是在起飞和着陆阶段，此时飞机最容易受到前方飞机的after propeller效应造成的干扰。此外，螺旋桨本身的设计也会影响after propeller气流的特性。不同的叶片形状、尺寸和螺距可以改变螺旋桨产生推力的效率以及空气在离开螺旋桨影响后如何表现。工程师花费大量时间测试和改进螺旋桨设计，以优化在不同速度和高度下的性能，确保after propeller气流对飞机的稳定性和控制有积极贡献。除了对推力生成的影响外，after propeller区域在噪音产生中也扮演着重要角色。旋转叶片与周围空气的相互作用可能会产生显著噪音，这对乘客和生活在机场附近的人们都是一个关注点。了解造成after propeller区域噪音的因素使工程师能够开发出更安静的推进系统，从而改善整体飞行体验。此外，after propeller动力学并不限于固定翼飞机。例如，直升机在其旋翼洗涤中也会经历类似现象，即旋翼产生的空气运动影响周围环境。飞行员在操控时必须考虑这些影响，尤其是在狭小空间或悬停操作时。总之，术语after propeller概括了空气动力学的一个重要方面，这是许多类型飞机操作的基础。理解该区域的影响使飞行员、工程师和航空爱好者能够欣赏飞行的复杂性。随着技术的进步和新推进系统的发展，对after propeller效应的研究将继续成为一个重要的研究领域，有助于提高航空旅行的安全性、效率和舒适度。