ventilated propeller

简明释义

充气螺旋桨

英英释义

例句

1.In competitive sailing, teams prefer a ventilated propeller for its superior thrust performance.

在竞技帆船比赛中，团队更喜欢使用通风螺旋桨，因为它的推力表现更优越。

2.Our research indicates that a ventilated propeller can enhance fuel efficiency by up to 15%.

我们的研究表明，通风螺旋桨可以提高多达15%的燃油效率。

3.Using a ventilated propeller in our jet ski allows for better maneuverability on the water.

在我们的摩托艇上使用通风螺旋桨可以更好地操控水面。

4.The ventilated propeller reduces cavitation, leading to quieter operation of the vessel.

该通风螺旋桨减少了气蚀，使船只的运行更加安静。

5.The new design of the boat features a ventilated propeller, which significantly improves its speed and efficiency.

新设计的船只配备了通风螺旋桨，显著提高了速度和效率。

作文

In the field of marine engineering and hydrodynamics, the term ventilated propeller refers to a type of propeller that is designed to operate efficiently in conditions where cavitation can occur. Cavitation is a phenomenon where vapor bubbles form in a liquid due to pressure changes, which can lead to damage and reduced efficiency of traditional propellers. The ventilated propeller incorporates air into the water flow around the blades, effectively reducing the pressure on the blades and preventing cavitation from occurring. This innovative design allows for better performance at higher speeds and under varying load conditions.The concept of ventilated propeller technology has gained significant attention in recent years, particularly in the context of high-speed vessels such as fast ferries and military crafts. These vessels often face challenges related to cavitation, which can compromise their speed and maneuverability. By utilizing a ventilated propeller, engineers can enhance the propulsion system's efficiency, leading to improved fuel economy and reduced environmental impact.One of the key advantages of ventilated propeller systems is their ability to maintain thrust even in turbulent or shallow waters. Traditional propellers can lose effectiveness in these conditions, but the introduction of air through ventilation helps maintain a consistent flow, ensuring that the vessel can perform optimally regardless of environmental factors. This characteristic is particularly beneficial for commercial shipping operations, where reliability and efficiency are paramount.Moreover, the ventilated propeller design can also contribute to noise reduction. Cavitation not only affects performance but can also generate significant underwater noise, which is detrimental to marine life. By minimizing cavitation, ventilated propeller systems help reduce this noise, promoting a more sustainable interaction with the marine ecosystem.The development of ventilated propeller technology involves extensive research and testing. Engineers must consider various factors, including blade shape, ventilation methods, and operational parameters, to optimize performance. Computational fluid dynamics (CFD) simulations play a critical role in this process, allowing researchers to predict how different designs will perform under various conditions before physical prototypes are built.In conclusion, the ventilated propeller represents a significant advancement in propeller technology, addressing some of the critical challenges faced by traditional designs. Its ability to prevent cavitation, maintain thrust in challenging conditions, and reduce underwater noise makes it an attractive option for modern marine vessels. As the demand for faster, more efficient, and environmentally friendly transportation continues to grow, the role of ventilated propeller systems in shaping the future of marine engineering is likely to become increasingly important.

在海洋工程和流体动力学领域，术语通风螺旋桨指的是一种设计用于在可能发生气蚀的条件下高效运行的螺旋桨。气蚀是一种现象，当液体由于压力变化而形成蒸汽气泡时，会导致传统螺旋桨的损坏和效率降低。通风螺旋桨通过将空气引入到刀片周围的水流中，有效地降低了刀片上的压力，从而防止气蚀的发生。这种创新设计使得在更高速度和各种负载条件下，性能更佳。近年来，通风螺旋桨技术的概念受到了广泛关注，特别是在高速船舶如快速渡轮和军舰的背景下。这些船舶常常面临与气蚀相关的挑战，这可能会影响它们的速度和机动性。通过利用通风螺旋桨，工程师可以提高推进系统的效率，从而改善燃油经济性并减少对环境的影响。通风螺旋桨系统的一个主要优点是它们能够在湍流或浅水中维持推力。传统螺旋桨在这些条件下可能会失去效果，但通过通风引入空气，有助于保持一致的流动，确保船舶无论在何种环境因素下都能最佳表现。这一特性对于商业航运操作尤为重要，因为可靠性和效率至关重要。此外，通风螺旋桨的设计也可以有助于减少噪音。气蚀不仅影响性能，还会产生显著的水下噪音，这对海洋生物有害。通过最小化气蚀，通风螺旋桨系统有助于减少这种噪音，促进与海洋生态系统的可持续互动。通风螺旋桨技术的发展涉及广泛的研究和测试。工程师必须考虑各种因素，包括刀片形状、通风方法和操作参数，以优化性能。计算流体动力学（CFD）模拟在这一过程中发挥着关键作用，使研究人员能够预测不同设计在各种条件下的表现，进而在构建物理原型之前进行评估。总之，通风螺旋桨代表了螺旋桨技术的重要进步，解决了传统设计面临的一些关键挑战。其防止气蚀、在挑战性条件下维持推力以及减少水下噪音的能力，使其成为现代海洋船舶的有吸引力的选择。随着对更快、更高效和更环保运输的需求不断增长，通风螺旋桨系统在塑造海洋工程未来中的作用可能会变得越来越重要。