propeller wake

简明释义

推进器伴流

英英释义

例句

1.Divers must be cautious of the propeller wake when surfacing near a boat.

潜水员在靠近船只浮出水面时必须小心螺旋桨尾流。

2.The captain adjusted the speed to minimize the impact of the propeller wake on the nearby fishing nets.

船长调整了速度，以尽量减少螺旋桨尾流对附近渔网的影响。

3.The boat slowed down to avoid the turbulence created by the propeller wake.

船只减速以避免由螺旋桨尾流造成的湍流。

4.When the ship turned sharply, the propeller wake caused a noticeable swell.

当船只急转弯时，螺旋桨尾流造成了明显的涌浪。

5.The propeller wake can create dangerous conditions for smaller vessels in the area.

对于该区域的小型船只来说，螺旋桨尾流可能会造成危险的情况。

作文

The study of marine engineering often leads to an exploration of various phenomena that occur in the water when vessels are in motion. One such phenomenon is known as propeller wake, which refers to the turbulent flow of water that is generated by a ship's propeller as it moves through the sea. Understanding the dynamics of propeller wake is crucial for engineers and naval architects, as it affects not only the efficiency of the vessel but also its impact on the surrounding environment.When a ship's propeller spins, it creates a low-pressure area behind it, pulling water into the propeller and pushing it out in a high-speed jet. This action generates the propeller wake, which is characterized by swirling eddies and varying velocities. The wake can extend for considerable distances behind the vessel, and its characteristics can change based on several factors, including the speed of the ship, the design of the propeller, and the type of water it is navigating.One of the primary concerns regarding propeller wake is its effect on the vessel's performance. A well-designed propeller will minimize the turbulence created in the wake, leading to more efficient propulsion and reduced fuel consumption. Conversely, an inefficient design can lead to increased drag, which can compromise the ship's speed and maneuverability. Therefore, engineers must carefully analyze the propeller wake during the design phase to ensure optimal performance.Moreover, the environmental implications of propeller wake cannot be overlooked. As ships traverse through sensitive marine ecosystems, the turbulence created can disturb local wildlife, particularly fish and other aquatic organisms. The mixing of water layers caused by the wake can also affect nutrient distribution and water quality. Thus, understanding the behavior of propeller wake is essential for mitigating negative impacts on marine life.In recent years, advancements in computational fluid dynamics (CFD) have allowed researchers to simulate propeller wake with remarkable accuracy. These simulations enable engineers to visualize the flow patterns and make informed decisions about propeller design and placement. By optimizing the shape and size of the propeller, it is possible to reduce the intensity of the wake and enhance the overall efficiency of the vessel.Additionally, some modern vessels are now being equipped with specialized devices designed to manage propeller wake. These devices can help to smooth out the turbulent flow before it reaches the hull or the surrounding water, thereby improving stability and reducing the environmental footprint of the ship. As the maritime industry continues to evolve, understanding and managing propeller wake will remain a focal point for engineers seeking to balance performance with environmental responsibility.In conclusion, the concept of propeller wake encompasses both technical and ecological considerations that are vital in the field of marine engineering. By comprehensively studying this phenomenon, engineers can design more efficient vessels while also protecting marine ecosystems. The ongoing research and innovation in this area highlight the importance of integrating technology with environmental stewardship, ensuring a sustainable future for maritime operations.

海洋工程的研究常常引导我们探索船只运动时发生的各种现象。其中一个现象被称为螺旋桨尾流，它指的是船只在海中移动时，由螺旋桨产生的湍流水流。理解螺旋桨尾流的动态对工程师和船舶设计师至关重要，因为它不仅影响船舶的效率，还影响周围环境。当船只的螺旋桨旋转时，会在其后方产生一个低压区域，将水拉入螺旋桨并以高速喷射出来。这一动作生成了螺旋桨尾流，其特征是旋涡和不同速度的水流。尾流可以在船只后方延伸相当远的距离，其特性会根据多个因素而变化，包括船只的速度、螺旋桨的设计以及所航行水域的类型。关于螺旋桨尾流的主要关注点之一是它对船舶性能的影响。设计良好的螺旋桨将最小化尾流中产生的湍流，从而提高推进效率并减少燃料消耗。相反，设计不合理可能导致增加阻力，从而影响船舶的速度和机动性。因此，工程师必须在设计阶段仔细分析螺旋桨尾流，以确保最佳性能。此外，螺旋桨尾流的环境影响也不容忽视。当船只穿越敏感的海洋生态系统时，产生的湍流会扰动当地野生动物，尤其是鱼类和其他水生生物。尾流造成的水层混合也会影响营养物质分布和水质。因此，理解螺旋桨尾流的行为对于减轻对海洋生物的负面影响至关重要。近年来，计算流体动力学（CFD）的进步使研究人员能够以惊人的准确度模拟螺旋桨尾流。这些模拟使工程师能够可视化流动模式，并就螺旋桨设计和位置做出明智的决策。通过优化螺旋桨的形状和大小，可以减少尾流的强度，提高船舶的整体效率。此外，一些现代船舶现在配备了专门的设备，旨在管理螺旋桨尾流。这些设备可以帮助在湍流到达船体或周围水域之前平滑流动，从而提高稳定性并减少船舶的环境足迹。随着海事行业的不断发展，理解和管理螺旋桨尾流将仍然是工程师们在追求性能与环境责任之间取得平衡的重点。总之，螺旋桨尾流的概念涵盖了海洋工程领域中技术和生态两方面的重要考虑。通过全面研究这一现象，工程师可以设计出更高效的船舶，同时保护海洋生态系统。在这一领域的持续研究和创新突显了将技术与环境管理相结合的重要性，为海洋作业的可持续未来奠定基础。