boundary layer phenomenon

简明释义

边界层现象

英英释义

例句

1.Understanding the boundary layer phenomenon 边界层现象 helps meteorologists predict weather patterns more accurately.

理解边界层现象 边界层现象有助于气象学家更准确地预测天气模式。

2.In fluid dynamics, the study of the boundary layer phenomenon 边界层现象 is crucial for understanding how air flows over an aircraft wing.

在流体动力学中，研究边界层现象 边界层现象对于理解空气如何在飞机机翼上流动至关重要。

3.The boundary layer phenomenon 边界层现象 plays a key role in the performance of HVAC systems in buildings.

在建筑物的暖通空调系统中，边界层现象 边界层现象起着关键作用。

4.Engineers often consider the boundary layer phenomenon 边界层现象 when designing more efficient wind turbines.

工程师在设计更高效的风力涡轮机时，常常考虑边界层现象 边界层现象。

5.The boundary layer phenomenon 边界层现象 can significantly affect the drag on vehicles moving at high speeds.

对于高速移动的车辆，边界层现象 边界层现象可以显著影响阻力。

作文

The study of fluid dynamics encompasses a variety of fascinating concepts, one of which is the boundary layer phenomenon. This term refers to the thin region adjacent to a surface where the effects of viscosity are significant and the flow velocity changes from zero at the surface to nearly the free stream velocity just outside this layer. Understanding the boundary layer phenomenon is crucial in many fields, including aerodynamics, meteorology, and engineering, as it plays a vital role in determining how fluids interact with solid boundaries.In aerodynamics, for instance, the boundary layer phenomenon significantly affects the lift and drag forces acting on an aircraft. When air flows over the wings of an airplane, it does not move uniformly. Instead, a layer of air close to the wing's surface experiences friction due to viscosity, leading to a velocity gradient. The behavior of this boundary layer can determine the efficiency of the wing and consequently the aircraft's performance. Engineers strive to manage the boundary layer phenomenon by designing wing shapes that delay flow separation, thereby reducing drag and improving lift.Similarly, in the field of meteorology, the boundary layer phenomenon is essential for understanding weather patterns and climate. The atmospheric boundary layer is the lowest part of the atmosphere, where the influence of the Earth's surface is felt. It is within this layer that turbulence and mixing occur, affecting temperature, humidity, and wind speed. Meteorologists study the boundary layer phenomenon to predict weather changes and understand the dispersion of pollutants in the atmosphere.Moreover, the boundary layer phenomenon is also critical in engineering applications, such as the design of bridges and buildings. Engineers must consider the effects of wind on structures, particularly how the wind interacts with surfaces and creates varying pressure distributions. By analyzing the boundary layer phenomenon, they can ensure that structures can withstand forces exerted by wind, thereby enhancing safety and durability.In conclusion, the boundary layer phenomenon is a key concept in fluid dynamics that has far-reaching implications across various fields. Its understanding aids in optimizing the performance of aircraft, predicting weather patterns, and ensuring the stability of structures. As technology advances, the study of the boundary layer phenomenon continues to evolve, leading to more efficient designs and better predictions in both engineering and environmental sciences. Therefore, grasping the intricacies of this phenomenon is not only academically enriching but also practically significant in our increasingly complex world.

流体动力学的研究涵盖了许多迷人的概念，其中之一就是边界层现象。这个术语指的是紧邻表面的薄层，在这个区域内，粘性效应显著，流速从表面处的零值变化到这一层外几乎达到自由流速。理解边界层现象对于许多领域至关重要，包括空气动力学、气象学和工程学，因为它在决定流体如何与固体边界相互作用中起着重要作用。例如，在空气动力学中，边界层现象显著影响飞机的升力和阻力。当空气流过飞机的机翼时，它并不是均匀流动的。相反，靠近机翼表面的一层空气由于粘性而经历摩擦，导致速度梯度的形成。这种边界层的行为可以决定机翼的效率，从而影响飞机的性能。工程师们努力通过设计延迟流动分离的机翼形状来管理边界层现象，从而减少阻力并提高升力。同样，在气象学领域，边界层现象对于理解天气模式和气候至关重要。大气边界层是大气最低的部分，在这里地表的影响显著。在这一层内，湍流和混合发生，影响温度、湿度和风速。气象学家研究边界层现象以预测天气变化和理解大气中污染物的扩散。此外，边界层现象在工程应用中也至关重要，例如桥梁和建筑物的设计。工程师必须考虑风对结构的影响，特别是风如何与表面相互作用并产生不同的压力分布。通过分析边界层现象，他们可以确保结构能够承受风施加的力量，从而增强安全性和耐久性。总之，边界层现象是流体动力学中的一个关键概念，对各个领域有深远的影响。其理解有助于优化飞机性能、预测天气模式以及确保结构稳定。随着技术的进步，对边界层现象的研究不断发展，推动了更高效的设计和更好的工程与环境科学预测。因此，掌握这一现象的复杂性不仅在学术上具有丰富的意义，而且在我们日益复杂的世界中具有实际的重要性。