wake fraction

简明释义

伴流系数

英英释义

The wake fraction is the ratio of the power extracted by a wind turbine to the total wind power available in the wind stream that passes through the rotor area.

尾流分数是指风力涡轮机提取的功率与通过转子区域的风流中可用的总风能之间的比率。

例句

1.The wake fraction 尾流分数 can significantly impact the energy output of wind farms.

在风电场中,wake fraction 尾流分数会显著影响能源输出。

2.By adjusting the spacing between turbines, we aimed to minimize the wake fraction 尾流分数.

通过调整涡轮机之间的间距,我们旨在最小化wake fraction 尾流分数

3.In our simulation, we measured the wake fraction 尾流分数 to evaluate the performance of the new model.

在我们的模拟中,我们测量了wake fraction 尾流分数以评估新模型的性能。

4.Researchers found that a lower wake fraction 尾流分数 led to higher efficiency in energy production.

研究人员发现,较低的wake fraction 尾流分数导致更高的能量生产效率。

5.The design of the wind turbine was optimized to reduce the wake fraction 尾流分数 affecting nearby turbines.

风力涡轮机的设计经过优化,以减少影响附近涡轮机的wake fraction 尾流分数

作文

In the field of fluid dynamics, the term wake fraction refers to the proportion of fluid that is disturbed or altered by an object moving through it. This concept is crucial for understanding how objects interact with their surrounding fluid environment, particularly in aerodynamics and hydrodynamics. When an object, such as an airplane wing or a ship hull, moves through fluid, it creates a wake—a region of turbulence and flow disruption behind it. The wake fraction quantifies the extent of this disturbance relative to the total flow of the fluid. Understanding wake fraction is essential for engineers and designers who aim to optimize the performance of vehicles and structures that operate in fluid environments. For instance, in aviation, reducing the wake fraction can lead to improved fuel efficiency and reduced drag, which ultimately enhances the aircraft's performance and reduces operational costs. Similarly, in marine engineering, controlling the wake fraction of a ship can minimize resistance and improve speed, making it more efficient in traversing water.The calculation of wake fraction typically involves complex fluid dynamics equations and simulations. Engineers use computational fluid dynamics (CFD) software to model the flow around objects and determine the characteristics of the wake. By analyzing the wake fraction, they can identify design modifications that will reduce turbulence and improve overall efficiency. For example, the shape of an object can significantly influence its wake fraction; streamlined designs tend to create smaller wakes compared to blunt shapes.Moreover, the wake fraction has implications beyond just performance. In environmental studies, understanding the wake fraction of marine vehicles can help assess their impact on aquatic ecosystems. A larger wake can disturb sediment and affect local wildlife, while a smaller wake may mitigate these effects. Thus, engineers must balance performance with environmental considerations when designing vessels.In conclusion, the concept of wake fraction is vital for anyone involved in the fields of fluid dynamics, engineering, and environmental science. By mastering the principles surrounding wake fraction, professionals can create more efficient designs that not only enhance performance but also consider their impact on the environment. As technology advances, the ability to accurately predict and manipulate wake fraction will continue to play a significant role in the development of innovative solutions in various industries.

在流体动力学领域,术语wake fraction指的是通过物体移动而扰动或改变的流体比例。这个概念对于理解物体如何与其周围流体环境相互作用至关重要,特别是在空气动力学和水动力学中。当一个物体,如飞机机翼或船体,穿过流体时,它会在其后方产生一个尾流区域——一个湍流和流动干扰的区域。wake fraction量化了这种扰动相对于流体总流动的程度。理解wake fraction对于工程师和设计师来说是必不可少的,他们旨在优化在流体环境中运行的车辆和结构的性能。例如,在航空领域,减少wake fraction可以提高燃油效率并降低阻力,从而最终增强飞机的性能并降低运营成本。同样,在海洋工程中,控制船舶的wake fraction可以最小化阻力,提高速度,使其在水中更高效地航行。wake fraction的计算通常涉及复杂的流体动力学方程和模拟。工程师使用计算流体动力学(CFD)软件对物体周围的流动进行建模,并确定尾流的特征。通过分析wake fraction,他们可以识别出能够减少湍流和改善整体效率的设计修改。例如,物体的形状可以显著影响其wake fraction; 流线型设计往往比钝形状产生更小的尾流。此外,wake fraction不仅仅对性能有影响。在环境研究中,了解海洋车辆的wake fraction可以帮助评估它们对水生生态系统的影响。较大的尾流可能会扰动沉积物并影响当地野生动物,而较小的尾流可能会减轻这些影响。因此,工程师在设计船舶时必须在性能和环境考虑之间取得平衡。总之,wake fraction的概念对于任何参与流体动力学、工程和环境科学领域的人来说都是至关重要的。通过掌握围绕wake fraction的原则,专业人士可以创造出更高效的设计,不仅提高性能,还考虑其对环境的影响。随着技术的进步,准确预测和操控wake fraction的能力将在各个行业的创新解决方案开发中继续发挥重要作用。