astern nozzle

简明释义

倒车喷嘴

英英释义

例句

1.The ship's propulsion system includes an astern nozzle 后喷嘴 that enhances maneuverability during docking.

船舶的推进系统包括一个后喷嘴 astern nozzle，可以在靠泊时增强机动性。

2.The captain instructed the crew to monitor the pressure in the astern nozzle 后喷嘴 during operation.

船长指示船员在操作期间监控后喷嘴 astern nozzle的压力。

3.Adjusting the angle of the astern nozzle 后喷嘴 can significantly improve the vessel's turning radius.

调整后喷嘴 astern nozzle的角度可以显著改善船只的转弯半径。

4.During trials, the astern nozzle 后喷嘴 was tested for its effectiveness in reducing drag.

在试验中，后喷嘴 astern nozzle被测试其在减少阻力方面的有效性。

5.An efficient astern nozzle 后喷嘴 design can lead to fuel savings for the entire voyage.

高效的后喷嘴 astern nozzle设计可以为整个航程节省燃料。

作文

In the world of marine engineering, various components play a crucial role in ensuring the efficiency and performance of vessels. One such component is the astern nozzle, which is an integral part of the propulsion system in many ships. The astern nozzle is designed to direct the flow of water from the propeller in a manner that enhances the vessel's maneuverability, especially when moving backwards. Understanding the function and advantages of the astern nozzle can provide valuable insights into the design and operation of modern ships.The primary purpose of the astern nozzle is to improve the thrust produced by the propeller when the ship is in reverse. When a vessel needs to back up, the propeller spins in the opposite direction, creating a flow of water that must be effectively managed to achieve optimal performance. The astern nozzle helps in this regard by concentrating the flow of water, which results in increased thrust and better control of the vessel's movements. This is particularly important in tight maneuvering situations, such as docking or navigating through narrow channels.Another significant advantage of the astern nozzle is its ability to reduce turbulence and cavitation. Turbulence can lead to inefficiencies in propulsion and can cause damage to the propeller and surrounding components. By streamlining the flow of water, the astern nozzle minimizes these negative effects, allowing for smoother operation and extended service life of the propulsion system. Additionally, reducing cavitation not only improves performance but also contributes to a quieter operation, which is increasingly important in today's environmentally conscious maritime industry.The design of the astern nozzle varies depending on the specific requirements of the vessel. Factors such as the size of the ship, the type of propeller, and the intended operational environment all influence the design choices made by engineers. For example, larger vessels may require more sophisticated astern nozzles that can handle higher flow rates and pressures, while smaller boats might utilize simpler designs. Regardless of the specifics, the goal remains the same: to enhance the vessel's ability to maneuver effectively in reverse.Moreover, advancements in technology have led to the development of innovative astern nozzle designs that further improve efficiency. Computational fluid dynamics (CFD) simulations allow engineers to test and refine nozzle shapes before physical prototypes are built. This not only speeds up the design process but also ensures that the final product will perform optimally under real-world conditions. As the maritime industry continues to evolve, the importance of effective components like the astern nozzle cannot be overstated.In conclusion, the astern nozzle is a vital component in the propulsion systems of many marine vessels. Its ability to enhance thrust, reduce turbulence, and prevent cavitation makes it an essential element for improving maneuverability and efficiency. As technology continues to advance, the design and functionality of the astern nozzle will likely evolve, leading to even greater improvements in marine engineering. For anyone interested in the intricacies of ship design and operation, understanding the role of the astern nozzle is key to appreciating the complexities of modern maritime technology.

在海洋工程的世界中，各种组件在确保船舶效率和性能方面发挥着至关重要的作用。其中一个重要组件就是后喷嘴，它是许多船舶推进系统的一个组成部分。后喷嘴旨在以一种增强船舶机动性，特别是在向后移动时的方式来引导来自螺旋桨的水流。理解后喷嘴的功能和优点可以为现代船舶的设计和操作提供有价值的见解。后喷嘴的主要目的是提高船舶在倒退时螺旋桨产生的推力。当一艘船需要倒退时，螺旋桨会以相反的方向旋转，产生的水流必须有效管理，以实现最佳性能。后喷嘴在这方面提供了帮助，通过集中水流，增加推力并更好地控制船舶的运动。这在紧凑的操控情况下尤为重要，例如停靠或在狭窄的水道中航行。后喷嘴的另一个显著优势是其能够减少湍流和气蚀。湍流可能导致推进效率降低，并可能对螺旋桨和周围组件造成损害。通过简化水流，后喷嘴最小化这些负面影响，从而实现更平稳的操作和延长推进系统的使用寿命。此外，减少气蚀不仅提高了性能，还使操作更加安静，这在当今环保意识日益增强的海事行业中变得越来越重要。后喷嘴的设计因船舶的具体要求而有所不同。船舶的大小、螺旋桨类型和预期操作环境等因素都影响工程师的设计选择。例如，更大的船舶可能需要更复杂的后喷嘴，以处理更高的流量和压力，而较小的船只可能采用更简单的设计。无论具体情况如何，目标始终是相同的：增强船舶在倒退时的机动能力。此外，技术的进步导致了创新的后喷嘴设计的发展，进一步提高了效率。计算流体动力学（CFD）模拟使工程师能够在制造物理原型之前测试和完善喷嘴形状。这不仅加快了设计过程，还确保最终产品在实际条件下能够实现最佳性能。随着海事行业的不断发展，有效组件如后喷嘴的重要性不容小觑。总之，后喷嘴是许多海洋船舶推进系统中的一个重要组成部分。它增强推力、减少湍流和防止气蚀的能力使其成为提高机动性和效率的必要元素。随着技术的不断进步，后喷嘴的设计和功能可能会不断演变，从而在海洋工程中带来更大的改善。对于任何对船舶设计和操作细节感兴趣的人来说，理解后喷嘴的作用是欣赏现代海事技术复杂性的关键。