propeller wake

简明释义

螺旋桨伴流

英英释义

例句

1.The fisherman noticed that fish tended to scatter when disturbed by the propeller wake.

渔夫注意到鱼在被螺旋桨尾流扰动时倾向于四散。

2.The boat slowed down as it entered the turbulent water caused by the propeller wake.

当船进入由螺旋桨尾流造成的湍急水域时，速度减慢。

3.The diver had to be cautious of the propeller wake while ascending to the surface.

潜水员在上升到水面时必须小心螺旋桨尾流。

4.Navigating through the propeller wake can be challenging for smaller vessels.

对小型船只来说，穿越螺旋桨尾流可能会很具挑战性。

5.The captain warned the crew about the strong propeller wake created by the large ship ahead.

船长警告船员们前方大型船只产生的强烈螺旋桨尾流。

作文

The study of fluid dynamics often reveals fascinating phenomena that are crucial for various engineering applications. One such phenomenon is the propeller wake, which refers to the turbulent flow of water or air that occurs behind a rotating propeller. This wake is not just a byproduct of propulsion; it has significant implications for both the performance of the vessel and the surrounding environment. Understanding the characteristics of the propeller wake is essential for optimizing the design of ships, submarines, and even aircraft. When a propeller spins, it generates thrust by pushing fluid backwards. As a result, the fluid experiences a change in pressure and velocity, creating a disturbance known as the propeller wake. This wake can be visualized as a trail of swirling water or air that follows the path of the propeller. The structure of the propeller wake is complex and influenced by factors such as the speed of the propeller, its size, and the density of the fluid. Engineers often use computational fluid dynamics (CFD) simulations to analyze these wakes and predict their effects on the performance of marine and aerial vehicles.One critical aspect of the propeller wake is its impact on efficiency. A well-designed propeller will minimize the energy lost to turbulence in the wake, allowing the vessel to achieve higher speeds with less fuel consumption. Conversely, an inefficient propeller may create excessive turbulence, leading to increased drag and reduced overall performance. This is why research into the propeller wake is vital for improving the fuel efficiency of ships and aircraft, which is increasingly important in today's environmentally conscious world.Moreover, the propeller wake can also affect the marine ecosystem. When a ship passes through water, the wake can disturb sediment on the seafloor and create waves that impact aquatic life. For instance, the turbulence generated by the propeller wake can displace small organisms and disrupt their habitats. Therefore, understanding the interactions between the propeller wake and the environment is crucial for mitigating the ecological impact of maritime activities.In addition to environmental considerations, the propeller wake plays a significant role in maneuverability. When vessels operate in confined spaces, such as harbors or narrow channels, the behavior of the wake can influence how easily a ship can turn or stop. This is particularly important for larger vessels that require more space to navigate. By studying the propeller wake, engineers can develop better control systems that enhance the handling characteristics of ships, ensuring safe and efficient operations.In conclusion, the propeller wake is a critical concept in fluid dynamics that has far-reaching implications for engineering, environmental science, and navigation. By understanding the mechanics of the propeller wake, researchers and engineers can design more efficient vessels, reduce ecological impacts, and improve safety in maritime operations. As technology advances, the study of the propeller wake will continue to evolve, offering new insights and solutions for the challenges faced in marine and aerial transportation.

流体动力学的研究常常揭示出对各种工程应用至关重要的迷人现象。其中一个现象是螺旋桨尾流，指的是在旋转螺旋桨后面发生的水或空气的湍流。这种尾流不仅仅是推进的副产品；它对船舶的性能和周围环境有着重要的影响。理解螺旋桨尾流的特征对于优化船只、潜艇甚至飞机的设计至关重要。当螺旋桨旋转时，它通过向后推动流体来产生推力。因此，流体经历了压力和速度的变化，产生了被称为螺旋桨尾流的干扰。可以将这种尾流可视化为沿着螺旋桨路径的旋转水或空气的轨迹。螺旋桨尾流的结构复杂，并受到螺旋桨速度、大小和流体密度等因素的影响。工程师们常常使用计算流体动力学（CFD）模拟来分析这些尾流并预测其对海洋和航空器性能的影响。螺旋桨尾流的一个关键方面是其对效率的影响。设计良好的螺旋桨将最小化因尾流中的湍流而损失的能量，使船只能够以更少的燃料消耗达到更高的速度。相反，效率低下的螺旋桨可能会产生过多的湍流，导致阻力增加和整体性能下降。这就是为什么对螺旋桨尾流的研究对提高船舶和飞机的燃油效率至关重要，而这在当今环保意识增强的世界中显得愈发重要。此外，螺旋桨尾流也会影响海洋生态系统。当船只通过水域时，尾流可能会扰动海底沉积物并产生影响水生生物的波浪。例如，螺旋桨尾流产生的湍流可能会位移小型生物并破坏它们的栖息地。因此，理解螺旋桨尾流与环境之间的相互作用对于减轻海洋活动的生态影响至关重要。除了环境考虑，螺旋桨尾流在机动性方面也发挥着重要作用。当船只在狭窄的空间内操作时，例如港口或狭窄的水道，尾流的行为可能会影响船只转弯或停止的难易程度。这对于需要更多空间进行导航的大型船只尤其重要。通过研究螺旋桨尾流，工程师可以开发出更好的控制系统，以增强船只的操控特性，确保安全高效的操作。总之，螺旋桨尾流是流体动力学中的一个关键概念，对工程、环境科学和导航具有深远的影响。通过理解螺旋桨尾流的机制，研究人员和工程师可以设计出更高效的船只，减少生态影响，提高海洋操作的安全性。随着技术的发展，螺旋桨尾流的研究将继续演变，为应对海洋和航空运输面临的挑战提供新的见解和解决方案。