vortex separation

简明释义

涡流分离

英英释义

例句

1.The engineer explained that vortex separation 涡流分离 can lead to a loss of lift in aircraft wings.

工程师解释说，vortex separation 涡流分离可能会导致飞机机翼的升力损失。

2.Engineers must account for vortex separation 涡流分离 when designing wind turbine blades.

工程师在设计风力涡轮叶片时必须考虑 vortex separation 涡流分离。

3.In fluid dynamics, vortex separation 涡流分离 is a critical phenomenon affecting flow stability.

在流体动力学中，vortex separation 涡流分离是影响流动稳定性的关键现象。

4.During the simulation, we observed significant vortex separation 涡流分离 behind the bluff body.

在模拟过程中，我们观察到在钝体后方出现显著的 vortex separation 涡流分离。

5.The design of the car's rear spoiler aims to minimize vortex separation 涡流分离 for better aerodynamics.

汽车后扰流板的设计旨在最小化 vortex separation 涡流分离以提高空气动力学性能。

作文

In the field of fluid dynamics, the term vortex separation refers to a phenomenon where the flow of fluid around an object detaches from the surface of that object, creating swirling vortices. This occurrence is critical in various engineering applications, particularly in aerodynamics and hydrodynamics. Understanding vortex separation is essential for designing efficient vehicles, aircraft, and even buildings, as it greatly influences drag and lift forces acting on these structures.When a fluid flows over a surface, it typically adheres to that surface due to viscosity. However, under certain conditions—such as high angles of attack or increased flow velocity—the fluid can no longer follow the contour of the surface. This leads to the formation of a low-pressure region, resulting in the vortex separation of the flow. The detached flow creates vortices that can significantly alter the overall flow pattern and increase turbulence.One of the most common examples of vortex separation is seen in aircraft wings. When an airplane takes off or maneuvers at steep angles, the airflow can separate from the wing's upper surface, leading to a loss of lift and potentially causing stall conditions. Engineers must carefully consider this phenomenon when designing wings, employing techniques such as vortex generators to delay vortex separation and maintain smoother airflow.In addition to aviation, vortex separation also plays a crucial role in marine engineering. Ships and submarines must contend with the effects of vortex separation to optimize their hull designs for better hydrodynamic performance. By minimizing drag caused by vortex formation, naval architects can enhance fuel efficiency and improve speed.Moreover, vortex separation is not limited to large-scale engineering projects. It is also relevant in everyday scenarios, such as the design of sports equipment. For example, golf balls are engineered with dimples to create turbulent flow around them, which helps to delay vortex separation and allows the ball to travel further. Similarly, cyclists often wear specially designed suits that reduce drag by managing vortex separation effectively.Understanding the mechanics behind vortex separation is vital for researchers and engineers alike. Through computational fluid dynamics (CFD) simulations and wind tunnel experiments, they can study how different shapes and surface textures influence the onset of vortex separation. This knowledge can lead to innovative designs that mitigate its adverse effects while harnessing its benefits in specific contexts.In conclusion, vortex separation is a fundamental concept in fluid dynamics that has far-reaching implications across various fields, including aerospace, marine engineering, and sports science. By grasping the principles governing this phenomenon, engineers can create more efficient designs that optimize performance and safety. As technology advances, our ability to predict and manage vortex separation will continue to improve, paving the way for new innovations in fluid-related applications.

在流体动力学领域，术语涡流分离指的是流体在物体周围流动时，从该物体的表面脱离的现象，形成旋转的涡流。这种现象在各种工程应用中至关重要，尤其是在空气动力学和水动力学中。理解涡流分离对于设计高效的车辆、飞机甚至建筑物是必不可少的，因为它极大地影响着作用于这些结构的阻力和升力。当流体流过一个表面时，通常由于粘性而附着在该表面上。然而，在某些条件下，例如高攻角或流速增加，流体无法再沿着表面的轮廓流动。这导致形成低压区域，从而导致流动的涡流分离。脱离的流动会形成涡流，这可以显著改变整体流动模式并增加湍流。涡流分离最常见的例子是在飞机机翼上。当飞机起飞或以陡峭的角度机动时，气流可能会从机翼的上表面分离，从而导致升力损失并可能引发失速情况。工程师在设计机翼时必须仔细考虑这一现象，采用诸如涡流发生器等技术来延迟涡流分离，以保持更平稳的气流。除了航空，涡流分离在海洋工程中也发挥着至关重要的作用。船舶和潜艇必须应对涡流分离的影响，以优化其船体设计以获得更好的水动力性能。通过最小化涡流形成所造成的阻力，海军建筑师可以提高燃油效率并改善速度。此外，涡流分离并不限于大型工程项目。在日常场景中，它在运动器材的设计中也具有相关性。例如，高尔夫球的设计采用了凹坑，以在其周围产生湍流，这有助于延迟涡流分离，使球飞得更远。同样，骑自行车的人常常穿着专门设计的服装，以有效管理涡流分离，减少阻力。理解涡流分离背后的机制对研究人员和工程师来说至关重要。通过计算流体动力学（CFD）模拟和风洞实验，他们可以研究不同形状和表面纹理如何影响涡流分离的发生。这一知识可以导致创新设计，减轻其不利影响，同时在特定情况下利用其优势。总之，涡流分离是流体动力学中的一个基本概念，对航空航天、海洋工程和运动科学等多个领域都有深远的影响。通过掌握这一现象的原理，工程师可以创造出更高效的设计，优化性能和安全性。随着技术的进步，我们预测和管理涡流分离的能力将不断提高，为流体相关应用的新创新铺平道路。