transient drag

简明释义

瞬时阻力

英英释义

例句

1.The researchers focused on reducing the transient drag 瞬时阻力 in the prototype to improve fuel efficiency.

研究人员专注于减少原型中的 瞬时阻力 transient drag 以提高燃油效率。

2.Understanding transient drag 瞬时阻力 is crucial for optimizing the design of high-speed trains.

理解 瞬时阻力 transient drag 对于优化高速列车的设计至关重要。

3.In simulations, the transient drag 瞬时阻力 affects the aircraft's performance significantly during takeoff.

在模拟中，瞬时阻力 transient drag 在起飞时显著影响飞机的性能。

4.The team analyzed the transient drag 瞬时阻力 experienced by the vehicle during rapid acceleration.

团队分析了车辆在快速加速期间经历的 瞬时阻力 transient drag 。

5.The engineer noted that the transient drag 瞬时阻力 during the initial phase of the flight was higher than expected.

工程师注意到在飞行初始阶段，瞬时阻力 transient drag 的值比预期的要高。

作文

In the world of fluid dynamics, understanding various forces acting on objects is crucial for engineers and scientists. One such concept that often comes into play is transient drag. This term refers to the resistance experienced by an object as it moves through a fluid, which can change rapidly due to fluctuations in velocity or flow conditions. To grasp the significance of transient drag in practical applications, we must first consider its implications in various fields such as aerodynamics, hydrodynamics, and even in the design of everyday objects.When an aircraft takes off, it encounters different phases of flight, each characterized by varying speeds and altitudes. During these phases, the forces acting on the aircraft change dramatically. The transient drag experienced during takeoff is a critical factor that engineers must account for in their designs. As the aircraft accelerates, the air around it becomes turbulent, leading to sudden changes in drag. This phenomenon can affect fuel efficiency and overall performance, making it essential for engineers to optimize the shape of the aircraft to minimize transient drag during these critical moments.Similarly, in marine engineering, vessels experience transient drag when they navigate through water. When a ship starts moving, it initially faces high levels of drag due to the water's inertia. As the ship gains speed, the drag may decrease, but it can also increase suddenly due to waves or other environmental factors. Understanding transient drag is vital for designing ships that can efficiently traverse different water conditions, ensuring safety and performance.Moreover, transient drag is not limited to large-scale vehicles; it also applies to smaller objects. For instance, consider a cyclist riding through varying terrains. As the cyclist accelerates uphill, the drag force changes due to the alteration in air pressure and speed. Cyclists often use this knowledge to strategize their movements, especially during competitions where every second counts. By minimizing transient drag, cyclists can improve their speed and performance.The study of transient drag extends beyond mechanics and engineering. It also plays a significant role in environmental science. For example, researchers studying pollution dispersion in rivers need to understand how transient drag affects the movement of contaminants. The rate at which pollutants disperse can be influenced by the transient forces acting on them, which can lead to better strategies for managing environmental impacts.In conclusion, the concept of transient drag is multifaceted and has far-reaching implications across various domains. From aerospace engineering to marine design and even environmental science, understanding how transient forces affect drag can lead to more efficient designs, improved performance, and better environmental management. As technology advances and our understanding of fluid dynamics deepens, the importance of studying transient drag will only continue to grow, influencing innovations and practices in numerous fields. Thus, mastering this concept is essential for anyone involved in related disciplines, as it is a fundamental aspect of how objects interact with fluids in motion.

在流体动力学的世界中，理解作用于物体的各种力对工程师和科学家至关重要。其中一个常见的概念是瞬态阻力。这个术语指的是物体在流体中移动时所经历的阻力，这种阻力可能由于速度或流动条件的波动而迅速变化。为了更好地理解瞬态阻力在实际应用中的意义，我们必须首先考虑它在航空动力学、水动力学等各个领域的影响，甚至在日常物品的设计中。当飞机起飞时，它会遇到不同的飞行阶段，每个阶段都以不同的速度和高度为特征。在这些阶段，作用于飞机的力会发生巨大的变化。起飞过程中所经历的瞬态阻力是工程师在设计中必须考虑的关键因素。当飞机加速时，周围的空气变得湍流，从而导致阻力的突然变化。这种现象会影响燃油效率和整体性能，因此工程师必须优化飞机的形状，以在这些关键时刻最小化瞬态阻力。同样，在海洋工程中，船只在水中航行时也会经历瞬态阻力。当一艘船开始移动时，由于水的惯性，它最初面临着高水平的阻力。随着船只速度的增加，阻力可能会减小，但也可能由于波浪或其他环境因素而突然增加。理解瞬态阻力对于设计能够有效穿越不同水域条件的船只至关重要，确保安全和性能。此外，瞬态阻力并不仅限于大规模的交通工具；它还适用于较小的物体。例如，考虑一下骑自行车的人在不同地形上骑行。当骑自行车的人在上坡时加速时，由于气压和速度的变化，阻力会发生变化。骑自行车的人通常利用这一知识来制定他们的运动策略，特别是在每一秒都至关重要的比赛中。通过最小化瞬态阻力，骑自行车的人可以提高他们的速度和表现。对瞬态阻力的研究超越了力学和工程学。它在环境科学中也发挥着重要作用。例如，研究人员在研究河流中污染物扩散时，需要了解瞬态阻力如何影响污染物的运动。污染物扩散的速度可能受到作用于它们的瞬态力的影响，这可以导致更好的环境影响管理策略。总之，瞬态阻力的概念是多方面的，并在各个领域具有深远的影响。从航空航天工程到海洋设计，甚至到环境科学，理解瞬态力如何影响阻力可以导致更高效的设计、改进的性能和更好的环境管理。随着技术的进步和我们对流体动力学的理解加深，研究瞬态阻力的重要性只会继续增长，影响多个领域的创新和实践。因此，掌握这一概念对任何参与相关学科的人来说都是必不可少的，因为它是物体与运动流体相互作用的基本方面。