vortex ring

简明释义

涡圈

英英释义

例句

1.In fluid dynamics, a vortex ring (涡环) is an important phenomenon that helps us understand turbulence.

在流体动力学中，涡环 是一种重要现象，有助于我们理解湍流。

2.The scientist demonstrated how a vortex ring (涡环) can be created using a simple water jet.

科学家演示了如何通过简单的水流产生一个涡环。

3.The vortex ring (涡环) created by the jet engine can be seen in the exhaust plume.

喷气发动机产生的涡环 可以在排气烟雾中看到。

4.Researchers are studying how vortex rings (涡环) can affect marine life.

研究人员正在研究涡环 如何影响海洋生物。

5.When a balloon is popped underwater, it often forms a visible vortex ring (涡环) as the air escapes.

当气球在水下爆炸时，空气逃逸时通常会形成一个可见的涡环。

作文

In the fascinating world of fluid dynamics, one of the most intriguing phenomena is the formation of a vortex ring. A vortex ring is essentially a toroidal (ring-shaped) structure of rotating fluid. This phenomenon can be observed in various natural and artificial systems, ranging from smoke rings produced by a smoker to the complex flows generated by underwater propulsion systems. Understanding the mechanics behind vortex rings not only captivates scientists and engineers but also has practical implications in several fields such as aerodynamics, marine engineering, and even medicine.The formation of a vortex ring occurs when a fluid is expelled in a circular motion, creating a rotating body of fluid that maintains its structure as it moves through the surrounding medium. This can be visualized by imagining a jet of water being forcefully pushed out in a circular manner. As the fluid exits, it drags along some of the surrounding fluid, resulting in a donut-shaped flow pattern. This unique structure allows the vortex ring to travel farther than a simple jet of fluid, making it an efficient way for energy transfer within fluids.One of the most common examples of a vortex ring in nature is the smoke ring. When someone exhales smoke in a circular motion, the expelled smoke forms a vortex ring that travels through the air, creating a mesmerizing visual display. The stability of a smoke vortex ring can be attributed to the conservation of angular momentum, which helps maintain its shape and allows it to propagate through the air with minimal energy loss.In addition to their aesthetic appeal, vortex rings have significant implications in various scientific and engineering applications. For example, in marine engineering, understanding how vortex rings behave can help improve the design of submarines and underwater vehicles. By harnessing the principles of vortex rings, engineers can create propulsion systems that are more efficient, allowing for smoother and faster movement through water.Moreover, vortex rings also play a role in medical applications, particularly in respiratory therapies. Devices such as nebulizers utilize the principles of fluid dynamics to produce fine mist particles from liquid medications. By creating a vortex ring of aerosolized medication, these devices ensure that the medicine is effectively delivered to the lungs, maximizing therapeutic benefits.In conclusion, the study of vortex rings offers valuable insights into the behavior of fluids and their interactions with the environment. From the mesmerizing beauty of smoke rings to the practical applications in engineering and medicine, the significance of vortex rings cannot be understated. As we continue to explore the complexities of fluid dynamics, the understanding of vortex rings will undoubtedly lead to new innovations and advancements in various fields. Thus, embracing the study of vortex rings is essential for both scientific inquiry and practical application in our ever-evolving technological landscape.

在流体动力学的迷人世界中，最引人入胜的现象之一是涡环的形成。涡环本质上是旋转流体的环状（圆环形）结构。这种现象可以在各种自然和人工系统中观察到，从吸烟者产生的烟圈到水下推进系统产生的复杂流动。理解涡环背后的机制不仅吸引着科学家和工程师，还有助于在多个领域，如空气动力学、海洋工程甚至医学，产生实际影响。涡环的形成发生在流体以圆形运动被排出时，形成一个旋转的流体体，它在穿过周围介质时保持其结构。这可以通过想象一股水被强力推出并以圆形方式喷出的情景来可视化。当流体排出时，它拖拽着一些周围的流体，导致产生一个甜甜圈形状的流动模式。这种独特的结构使得涡环能够比简单的流体喷射传播得更远，成为流体内能量传递的一种高效方式。自然界中最常见的涡环示例之一是烟圈。当有人以圆形运动呼出烟雾时，排出的烟雾形成一个涡环，在空气中移动，创造出迷人的视觉效果。烟涡环的稳定性可以归因于角动量的守恒，这有助于维持其形状，并使其以最小的能量损失在空气中传播。除了美学吸引力外，涡环在多个科学和工程应用中也具有重要意义。例如，在海洋工程中，理解涡环的行为可以帮助改善潜艇和水下车辆的设计。通过利用涡环的原理，工程师可以创建更高效的推进系统，从而在水中实现更平滑、更快速的运动。此外，涡环在医学应用中也发挥着作用，特别是在呼吸治疗中。像雾化器这样的设备利用流体动力学的原理从液体药物中产生细小的雾粒子。通过创建一个气溶胶化药物的涡环，这些设备确保药物有效地输送到肺部，最大限度地提高治疗效果。总之，研究涡环为我们提供了对流体行为及其与环境相互作用的宝贵见解。从烟圈的迷人美丽到工程和医学中的实际应用，涡环的重要性不容小觑。随着我们继续探索流体动力学的复杂性，对涡环的理解无疑将导致各个领域的新创新和进展。因此，拥抱对涡环的研究对于科学探究和在不断发展的技术环境中的实际应用至关重要。