karman vortex street

简明释义

卡门涡街

英英释义

例句

1.The 卡门涡街 can cause vibrations that affect the performance of wind turbines.

卡门涡街可能导致振动，影响风力涡轮机的性能。

2.The 卡门涡街 phenomenon is crucial for understanding fluid dynamics.

理解流体动力学时，卡门涡街现象至关重要。

3.During the experiment, we observed a clear 卡门涡街 behind the object in the wind tunnel.

在实验中，我们观察到风洞中物体后方出现明显的卡门涡街。

4.The design of the bridge took into account the effects of the 卡门涡街 formed by the wind.

桥梁的设计考虑了风形成的卡门涡街的影响。

5.Engineers must analyze the 卡门涡街 when designing tall buildings to ensure stability.

工程师在设计高楼时必须分析卡门涡街以确保稳定性。

作文

The phenomenon known as the Karman vortex street is a fascinating aspect of fluid dynamics that can be observed in various natural and engineered systems. This occurrence is named after the Hungarian-American engineer Theodore von Karman, who studied the behavior of vortices in fluid flow. When a fluid flows past a cylindrical object, it creates a repeating pattern of swirling vortices on the downstream side of the object. These vortices alternate in direction and form a series of organized structures, which is what we refer to as a Karman vortex street. Understanding the Karman vortex street is essential not only for theoretical physics but also for practical applications in engineering. For example, this phenomenon can lead to vibrations in bridges, buildings, and other structures when wind or water flows past them. If these vibrations resonate with the natural frequency of the structure, it can result in catastrophic failure. Therefore, engineers must consider the implications of the Karman vortex street when designing structures that will be exposed to fluid flows.In addition to engineering, the Karman vortex street can also be observed in nature. One notable example is the way fish swim in schools. By positioning themselves strategically, fish can take advantage of the vortices created by their neighbors, allowing them to conserve energy while swimming. This principle of hydrodynamic efficiency showcases how understanding the Karman vortex street can have ecological implications as well.Moreover, the study of the Karman vortex street extends beyond just fluid dynamics. It has applications in aerodynamics, meteorology, and even astrophysics. For instance, scientists observe similar vortex patterns in the atmospheres of planets and stars, helping them understand the forces at play in these celestial bodies. This cross-disciplinary relevance emphasizes the importance of studying such phenomena.In conclusion, the Karman vortex street is a remarkable illustration of how fluid dynamics operates in both natural and artificial environments. Its implications are vast, affecting everything from the structural integrity of buildings to the swimming patterns of fish. As we continue to explore and understand this phenomenon, we can apply this knowledge to improve our designs and interactions with the world around us. The Karman vortex street serves as a reminder of the intricate relationships between forces, structures, and living organisms, highlighting the beauty of science in explaining the complexities of our universe.

被称为卡门涡街的现象是流体动力学中一个迷人的方面，可以在各种自然和工程系统中观察到。这个现象以匈牙利裔美国工程师西奥多·冯·卡门的名字命名，他研究了流动中的涡旋行为。当流体流过一个圆柱形物体时，它会在物体下游侧产生一系列重复的旋涡模式。这些涡旋交替方向，形成一系列有组织的结构，这就是我们所称的卡门涡街。理解卡门涡街不仅对理论物理至关重要，也对工程应用至关重要。例如，当风或水流过桥梁、建筑物及其他结构时，这种现象可能导致振动。如果这些振动与结构的固有频率共振，就可能导致灾难性的失败。因此，工程师在设计将暴露于流体流动的结构时，必须考虑卡门涡街的影响。除了工程领域，卡门涡街也可以在自然界中观察到。一个显著的例子是鱼群游动的方式。通过战略性地定位自己，鱼可以利用邻居产生的涡旋，从而在游泳时节省能量。这种流体动力学效率的原则展示了理解卡门涡街如何对生态产生影响。此外，对卡门涡街的研究超越了流体动力学。它在空气动力学、气象学，甚至天体物理学中都有应用。例如，科学家观察到类似的涡旋模式存在于行星和恒星的大气中，帮助他们理解这些天体中发生的力。这种跨学科的相关性强调了研究此类现象的重要性。总之，卡门涡街是流体动力学在自然和人工环境中运作的一个显著例证。它的影响广泛，涉及从建筑物的结构完整性到鱼类游动模式的一切。随着我们继续探索和理解这一现象，我们可以将这些知识应用于改善我们与周围世界的设计和互动。卡门涡街提醒我们力量、结构和生物体之间复杂关系的精妙，突显了科学在解释我们宇宙复杂性方面的美丽。