wake fraction

简明释义

伴流率

英英释义

例句

1.The wake fraction represents the portion of energy lost due to turbulence behind a wind turbine.

wake fraction 表示由于风力涡轮机后方的湍流而损失的能量部分。

2.Researchers found that reducing the wake fraction can significantly improve the efficiency of wind farms.

研究人员发现，减少 wake fraction 可以显著提高风电场的效率。

3.In aerodynamics, the wake fraction is crucial for understanding drag forces on an aircraft.

在空气动力学中，wake fraction 对于理解飞机上的阻力至关重要。

4.Calculating the wake fraction helps engineers optimize turbine placement in wind farms.

计算 wake fraction 有助于工程师优化风电场中涡轮的布置。

5.The wake fraction can vary based on the design of the turbine blades.

wake fraction 可能会根据涡轮叶片的设计而有所不同。

作文

In the study of fluid dynamics, particularly in the context of aerodynamics and hydrodynamics, the term wake fraction refers to a specific measurement that describes the proportion of the wake generated by an object moving through a fluid, such as air or water. The wake is the turbulent flow that occurs behind a moving object, and understanding its characteristics is crucial for various applications, including the design of vehicles, aircraft, and ships. The wake fraction can be defined as the ratio of the velocity of the wake to the velocity of the object itself. This concept helps engineers and scientists assess how much energy is lost due to turbulence and drag, which are significant factors affecting the efficiency and performance of any vehicle.When designing an aircraft, for example, engineers must consider the wake fraction to minimize drag and improve fuel efficiency. A smaller wake fraction indicates a more streamlined design that produces less turbulence, allowing the aircraft to fly more efficiently. Conversely, a larger wake fraction suggests that the aircraft creates a substantial amount of turbulence, which can lead to increased fuel consumption and reduced speed. By optimizing the wake fraction, engineers can achieve better aerodynamic performance, ultimately leading to cost savings and improved operational capabilities.Similarly, in marine engineering, the concept of wake fraction plays a vital role in the design of ships and submarines. The wake generated by a ship can affect not only its speed but also the surrounding environment, including marine life and coastal structures. Understanding the wake fraction allows engineers to create designs that minimize negative impacts on the ecosystem while maximizing the vessel's efficiency. For instance, a ship with a well-designed hull shape will have a lower wake fraction, resulting in less energy wasted and a smoother passage through the water.Furthermore, the wake fraction is not only relevant in the design phase but also in operational contexts. Pilots and captains must be aware of the wake fraction when maneuvering their vehicles, especially in crowded airspaces or busy shipping lanes. Maintaining safe distances from other vessels is crucial to avoid the adverse effects of their wakes, which can disrupt stability and control. Therefore, understanding the wake fraction contributes to safer navigation and operation in various environments.In conclusion, the concept of wake fraction is essential in the fields of aerodynamics and hydrodynamics. It provides valuable insights into the efficiency and performance of vehicles operating in fluid environments. By optimizing designs to achieve a favorable wake fraction, engineers can enhance fuel efficiency, reduce environmental impact, and improve safety. As technology advances, the importance of understanding and applying the principles associated with wake fraction will continue to grow, paving the way for more innovative and sustainable transportation solutions.

在流体动力学的研究中，尤其是在空气动力学和水动力学的背景下，短语wake fraction指的是一种特定的测量，描述了一个物体在流体（如空气或水）中移动时产生的尾流的比例。尾流是物体后面发生的湍流流动，理解其特性对于各种应用至关重要，包括车辆、飞机和船只的设计。wake fraction可以定义为尾流的速度与物体本身速度的比率。这个概念帮助工程师和科学家评估由于湍流和阻力造成的能量损失，这些因素对任何车辆的效率和性能都有显著影响。例如，在设计飞机时，工程师必须考虑wake fraction以最小化阻力并提高燃油效率。较小的wake fraction表明更流线型的设计，产生较少的湍流，使飞机能够更高效地飞行。相反，较大的wake fraction则表明飞机产生了大量湍流，这可能导致燃油消耗增加和速度降低。通过优化wake fraction，工程师可以实现更好的气动性能，最终带来成本节约和改进的操作能力。同样，在海洋工程中，wake fraction的概念在船舶和潜艇的设计中也起着至关重要的作用。船舶产生的尾流不仅可以影响其速度，还会影响周围环境，包括海洋生物和沿海结构。理解wake fraction使工程师能够创建设计，最小化对生态系统的负面影响，同时最大化舰艇的效率。例如，具有良好设计船体形状的船舶将具有较低的wake fraction，从而减少能量浪费，并在水中平稳航行。此外，wake fraction不仅在设计阶段相关，在操作环境中也同样重要。飞行员和船长在操控他们的车辆时，必须意识到wake fraction，特别是在拥挤的空域或繁忙的航道中。保持与其他船只的安全距离对于避免其尾流的负面影响至关重要，因为尾流可能会干扰稳定性和控制。因此，理解wake fraction有助于在各种环境中实现更安全的导航和操作。总之，wake fraction的概念在空气动力学和水动力学领域中至关重要。它为在流体环境中运行的车辆的效率和性能提供了宝贵的见解。通过优化设计以实现有利的wake fraction，工程师可以提高燃油效率，减少环境影响，并改善安全性。随着技术的进步，理解和应用与wake fraction相关的原则的重要性将继续增长，为更具创新性和可持续性的交通解决方案铺平道路。