free stream

简明释义

自由流

英英释义

例句

1.In fluid dynamics, the velocity of the free stream 自由流 is crucial for calculating Reynolds numbers.

在流体动力学中，自由流 自由流的速度对于计算雷诺数至关重要。

2.The free stream 自由流 condition helps engineers design more efficient aircraft.

在自由流 自由流条件下，工程师可以设计出更高效的飞机。

3.The airfoil was tested in a wind tunnel to observe the effects of the free stream 自由流 on its lift and drag characteristics.

机翼在风洞中进行了测试，以观察其升力和阻力特性受自由流 自由流的影响。

4.The behavior of the fluid in the free stream 自由流 region can significantly impact the performance of the system.

流体在自由流 自由流区域的行为会显著影响系统的性能。

5.We measured the temperature of the free stream 自由流 to ensure accurate thermodynamic calculations.

我们测量了自由流 自由流的温度，以确保热力学计算的准确性。

作文

In the world of fluid dynamics, the term free stream refers to the flow of a fluid that is far from any disturbances or boundaries. This concept is crucial for understanding how fluids behave in various situations, such as in aerodynamics and hydrodynamics. When we talk about a free stream, we are essentially discussing the state of the fluid where its velocity, pressure, and density are uniform and not affected by nearby objects. This ideal condition allows scientists and engineers to analyze the properties of the fluid without the complexities introduced by obstacles or surface interactions.The significance of free stream conditions can be seen in many practical applications. For instance, in the design of aircraft, engineers must consider how air flows around the wings. The airflow can be approximated as a free stream when it is sufficiently far from the wing's surface. Understanding this allows for better predictions of lift and drag forces acting on the aircraft. Similarly, in the field of marine engineering, the behavior of water around ship hulls can also be analyzed under free stream conditions to optimize performance and fuel efficiency.Moreover, the concept of free stream is not limited to just physical applications; it also has implications in environmental studies. For example, when studying the dispersion of pollutants in air or water, researchers often assume a free stream condition to simplify their models. This assumption helps in predicting how contaminants will spread over a large area without the interference of other factors. However, it is essential to remember that real-world conditions are rarely ideal, and deviations from free stream characteristics can lead to significant differences in outcomes.In addition to its practical applications, the free stream concept also serves as a foundational principle in theoretical studies. In computational fluid dynamics (CFD), simulations often begin with free stream assumptions to establish baseline conditions. These simulations help researchers visualize fluid flow patterns and understand complex interactions within the fluid. As the analysis progresses, more variables can be introduced to account for the effects of boundaries and obstacles.Ultimately, the idea of free stream is a powerful tool in both theoretical and applied sciences. It provides a simplified view of fluid behavior that can lead to significant insights and advancements in technology. While the free stream condition may not always exist in reality, its utility in modeling and analysis makes it an indispensable concept in the study of fluid dynamics. As we continue to explore the intricacies of fluid behavior, the free stream will remain a fundamental aspect of our understanding, guiding innovations in various fields from aerospace to environmental science.

在流体动力学的世界中，术语自由流指的是远离任何干扰或边界的流体流动。这个概念对于理解流体在各种情况下的行为至关重要，比如在空气动力学和水动力学中。当我们谈论自由流时，我们实际上是在讨论流体的状态，在这种状态下，它的速度、压力和密度是均匀的，并且不受附近物体的影响。这种理想条件使科学家和工程师能够分析流体的特性，而不必考虑障碍物或表面相互作用引入的复杂性。自由流条件的重要性可以在许多实际应用中看出。例如，在飞机设计中，工程师必须考虑空气如何在机翼周围流动。当气流距离机翼表面足够远时，可以将其近似为自由流。理解这一点有助于更好地预测作用于飞机的升力和阻力。同样，在海洋工程领域，水流在船体周围的行为也可以在自由流条件下进行分析，以优化性能和燃油效率。此外，自由流的概念不仅限于物理应用；它在环境研究中也具有重要意义。例如，在研究空气或水中污染物的扩散时，研究人员通常假设自由流条件以简化他们的模型。这一假设有助于预测污染物如何在大面积内扩散，而不受其他因素的干扰。然而，重要的是要记住，现实世界的条件很少是理想的，偏离自由流特征可能会导致结果的显著差异。除了其实际应用外，自由流概念还作为理论研究的基础原则。在计算流体动力学（CFD）中，模拟通常从自由流假设开始，以建立基线条件。这些模拟帮助研究人员可视化流体流动模式，并理解流体内的复杂相互作用。随着分析的进行，可以引入更多变量来考虑边界和障碍物的影响。最终，自由流的概念在理论和应用科学中都是一个强大的工具。它提供了流体行为的简化视图，可以带来重大的见解和技术进步。尽管自由流条件在现实中可能并不总是存在，但它在建模和分析中的实用性使其成为流体动力学研究中不可或缺的概念。随着我们继续探索流体行为的复杂性，自由流将仍然是我们理解的基本方面，引导各个领域的创新，从航空航天到环境科学。