vortex street

简明释义

涡练

英英释义

例句

1.In aerodynamics, the concept of vortex street is crucial for designing efficient vehicles.

在空气动力学中，涡街的概念对于设计高效的交通工具至关重要。

2.The vortex street created by the wind blowing over the hills was mesmerizing.

风吹过山丘形成的涡街令人着迷。

3.Scientists studied the vortex street formed behind the moving boat to understand fluid dynamics.

科学家研究了移动船只后形成的涡街，以了解流体力学。

4.The vortex street behind the car was visible as it sped down the highway.

汽车在高速公路上疾驶时，后面的涡街是可见的。

5.The aircraft encountered a strong vortex street during its flight, causing turbulence.

飞机在飞行过程中遇到了强烈的涡街，导致了颠簸。

作文

In the realm of fluid dynamics, the concept of a vortex street refers to a series of alternating vortices that are formed in the wake of an object moving through a fluid. This phenomenon is not only fascinating from a scientific perspective but also plays a crucial role in various applications, including engineering, meteorology, and even sports. Understanding how a vortex street is created can provide insights into the behavior of fluids and the forces acting on objects immersed in them.When an object, such as a cylinder or an airfoil, moves through a fluid, it disrupts the flow of that fluid. The fluid particles cannot immediately fill the space left by the object, leading to the formation of low-pressure regions behind it. As the fluid flows around the object, these low-pressure areas cause the fluid to spiral and create vortices. These vortices are shed alternately on either side of the object, resulting in a pattern known as a vortex street.The spacing and strength of the vortices depend on several factors, including the speed of the object, the viscosity of the fluid, and the shape of the object itself. For instance, in aerodynamics, the vortex street can significantly affect the lift and drag forces acting on an aircraft wing. Engineers must consider these effects when designing wings to ensure optimal performance and stability during flight.Moreover, the study of vortex streets extends beyond aviation. In meteorology, understanding the formation of vortex streets can help predict weather patterns. For example, when large bodies of water interact with atmospheric conditions, they can create vortex streets that influence wind patterns and precipitation. This knowledge is essential for accurate weather forecasting and climate modeling.In the field of sports, athletes can benefit from understanding vortex streets as well. For instance, swimmers and cyclists often experience drag due to the formation of vortices around their bodies. By optimizing their movements to minimize the impact of a vortex street, they can enhance their performance and reduce energy expenditure. Coaches and trainers increasingly incorporate this knowledge into training regimens, helping athletes achieve better results.Furthermore, the visual representation of a vortex street can be mesmerizing. When visualized using smoke or dye in a fluid, one can see the intricate patterns formed by the alternating vortices. This not only serves as a beautiful display but also as a powerful educational tool, illustrating fundamental principles of fluid dynamics in a tangible way.In conclusion, the concept of a vortex street is a prime example of how fluid dynamics intersects with various fields, from engineering to meteorology and sports. Its implications are far-reaching, affecting everything from aircraft design to athletic performance. By continuing to study and understand vortex streets, scientists and engineers can innovate and improve technologies that rely on fluid interactions, ultimately enhancing our daily lives. The beauty and complexity of these phenomena remind us of the intricate dance between objects and fluids, a dance that shapes our world in ways we are only beginning to comprehend.

在流体动力学领域，涡街的概念指的是在物体通过流体时形成的一系列交替涡旋。这一现象不仅从科学角度来看令人着迷，而且在工程、气象甚至体育等多个应用领域中发挥着重要作用。理解如何形成涡街可以为我们提供有关流体行为及其对浸入物体的作用力的深刻见解。当一个物体，如圆柱体或机翼，穿过流体时，它会干扰流体的流动。流体颗粒无法立即填补物体留下的空间，导致在其后方形成低压区域。当流体绕物体流动时，这些低压区域使流体产生螺旋运动并形成涡旋。这些涡旋交替地在物体的两侧释放，形成一种称为涡街的模式。涡旋的间距和强度取决于多个因素，包括物体的速度、流体的粘度以及物体本身的形状。例如，在空气动力学中，涡街可以显著影响飞机机翼上的升力和阻力。工程师在设计机翼时必须考虑这些影响，以确保飞行过程中的最佳性能和稳定性。此外，涡街的研究超越了航空领域。在气象学中，理解涡街的形成可以帮助预测天气模式。例如，当大水体与大气条件相互作用时，它们可以形成影响风向和降水的涡街。这些知识对于准确的天气预报和气候建模至关重要。在体育领域，运动员也可以从理解涡街中受益。例如，游泳者和骑自行车的人常常由于身体周围涡旋的形成而经历阻力。通过优化他们的动作以最小化涡街的影响，他们可以提高表现并减少能量消耗。教练和训练师越来越多地将这些知识纳入训练方案，帮助运动员取得更好的成绩。此外，涡街的可视化表现可能是迷人的。当使用烟雾或染料在流体中可视化时，人们可以看到交替涡旋形成的复杂图案。这不仅作为一种美丽的展示，还作为一种强大的教育工具，生动地展示了流体动力学的基本原理。总之，涡街的概念是流体动力学与多个领域交叉的一个典范，从工程到气象再到体育。它的影响深远，涉及从飞机设计到运动表现的方方面面。通过继续研究和理解涡街，科学家和工程师可以创新并改善依赖流体相互作用的技术，最终提升我们的日常生活。这些现象的美丽和复杂性提醒我们，物体与流体之间的复杂舞蹈塑造了我们的世界，以我们刚刚开始理解的方式。