propeller cavitation

简明释义

螺旋桨旋转真空

英英释义

例句

1.The ship experienced severe propeller cavitation during its high-speed maneuvers, leading to reduced efficiency.

这艘船在高速机动时经历了严重的螺旋桨空化，导致效率降低。

2.To minimize propeller cavitation, the vessel's speed was reduced while navigating through shallow waters.

为了减少螺旋桨空化，在浅水区航行时降低了船只的速度。

3.Engineers are studying the effects of propeller cavitation on performance to design more efficient propellers.

工程师们正在研究螺旋桨空化对性能的影响，以设计更高效的螺旋桨。

4.Proper maintenance can help reduce instances of propeller cavitation in marine vessels.

适当的维护可以帮助减少海洋船只中螺旋桨空化的发生。

5.The research team published a paper on propeller cavitation and its impact on underwater noise pollution.

研究小组发表了一篇关于螺旋桨空化及其对水下噪音污染影响的论文。

作文

Understanding the phenomenon of propeller cavitation is crucial for anyone involved in marine engineering or naval architecture. Propeller cavitation refers to the formation of vapor bubbles in a liquid when the local pressure falls below the vapor pressure of the liquid. This typically occurs at high speeds or under certain load conditions, where the pressure around the propeller blades decreases significantly. When these vapor bubbles form, they can collapse violently as they move into higher pressure areas, leading to a range of damaging effects on the propeller itself and the surrounding structure.The implications of propeller cavitation are significant. First and foremost, it can lead to erosion and pitting on the surface of the propeller blades. This not only reduces the efficiency of the propeller but also shortens its lifespan. In extreme cases, the structural integrity of the propeller can be compromised, leading to catastrophic failures that could endanger the vessel and its crew.Moreover, propeller cavitation can adversely affect the performance of the entire vessel. As the efficiency of the propeller decreases due to cavitation, the engine must work harder to maintain speed, which can lead to increased fuel consumption and operational costs. Additionally, the noise generated by cavitating propellers can be detrimental in environments where stealth is required, such as military operations or wildlife protection areas.To mitigate the effects of propeller cavitation, engineers employ various design strategies. One common approach is to optimize the shape and size of the propeller blades to ensure smoother water flow and minimize pressure drops. Additionally, using materials that are more resistant to cavitation damage can help prolong the life of the propeller. In some cases, adding devices such as cavitation plates or modifying the vessel's hull design can also reduce the likelihood of cavitation occurring.In conclusion, understanding propeller cavitation is essential for maintaining the efficiency and safety of marine vessels. By recognizing the causes and effects of this phenomenon, engineers can take proactive measures to design better propellers and enhance the overall performance of ships. As technology advances, ongoing research into propeller cavitation will undoubtedly lead to even more innovative solutions that can further mitigate its impacts on marine operations.

理解螺旋桨气蚀现象对任何参与海洋工程或船舶设计的人来说都是至关重要的。螺旋桨气蚀是指在液体中形成蒸汽气泡的现象，当局部压力降到液体的蒸汽压力以下时就会发生。这通常发生在高速或某些负载条件下，螺旋桨叶片周围的压力显著降低。当这些蒸汽气泡形成后，它们可以在移动到高压区域时剧烈崩溃，导致对螺旋桨本身及周围结构的一系列破坏性影响。螺旋桨气蚀的影响是显著的。首先，它可能导致螺旋桨叶片表面的侵蚀和凹坑。这不仅降低了螺旋桨的效率，还缩短了其使用寿命。在极端情况下，螺旋桨的结构完整性可能受到损害，导致灾难性故障，危及船只及其船员的安全。此外，螺旋桨气蚀还会对整个船只的性能产生不利影响。由于气蚀导致螺旋桨效率降低，发动机必须更加努力地工作以维持速度，这可能导致燃料消耗增加和运营成本上升。此外，气蚀螺旋桨产生的噪音在需要隐蔽性的环境中，例如军事行动或野生动物保护区，可能是有害的。为了减轻螺旋桨气蚀的影响，工程师采用各种设计策略。一种常见的方法是优化螺旋桨叶片的形状和大小，以确保水流更加平稳，并最小化压力下降。此外，使用对气蚀损伤更具抵抗力的材料也可以帮助延长螺旋桨的使用寿命。在某些情况下，添加气蚀板等装置或修改船体设计也可以减少气蚀发生的可能性。总之，理解螺旋桨气蚀对维护海洋船只的效率和安全至关重要。通过认识这一现象的原因和影响，工程师可以采取积极的措施来设计更好的螺旋桨并提高船只的整体性能。随着技术的进步，对螺旋桨气蚀的持续研究无疑将导致更多创新解决方案，从而进一步减轻其对海洋作业的影响。