velocity excess

简明释义

速度过量

英英释义

例句

1.The data showed a velocity excess of 15% above the predicted values, prompting a review of the calculations.

数据显示，实际值比预测值高出15%的速度过剩，促使对计算结果进行审查。

2.In high-speed rail systems, velocity excess can lead to increased wear on tracks and rolling stock.

在高速铁路系统中，速度过剩可能导致轨道和车辆的磨损加剧。

3.The rocket experienced a significant velocity excess during its launch phase, leading to an unexpected trajectory.

火箭在发射阶段经历了显著的速度过剩，导致了意外的轨迹。

4.The pilot was trained to manage velocity excess during maneuvers to prevent stalling.

飞行员接受过培训，以便在机动过程中管理速度过剩，以防止失速。

5.Engineers must account for velocity excess when designing aircraft to ensure stability at high speeds.

工程师在设计飞机时必须考虑速度过剩，以确保在高速下的稳定性。

作文

In the study of physics, particularly in the context of fluid dynamics and aerodynamics, the term velocity excess refers to the difference between the actual velocity of a fluid or object and the velocity at which it would be in equilibrium with its surroundings. Understanding velocity excess is crucial for engineers and scientists who are involved in designing systems that interact with fluids, such as airplanes, rockets, and various types of machinery. When an object moves through a fluid, it experiences forces that can alter its motion. The concept of velocity excess helps in quantifying these changes and allows for better predictions of how the object will behave under different conditions. For instance, in aerodynamics, the velocity excess can be used to describe how much faster an aircraft is moving compared to the surrounding air. This difference in velocity can have significant implications for lift and drag forces acting on the airplane. A higher velocity excess typically results in increased lift, which is essential for an aircraft to take off and maintain altitude. However, it can also lead to increased drag, which must be managed to ensure fuel efficiency and performance. Furthermore, understanding velocity excess is not only limited to aviation but also extends to various fields such as meteorology, where it can describe wind patterns, and even in the automotive industry, where it plays a role in vehicle design and performance. Engineers often use computational fluid dynamics (CFD) simulations to visualize and calculate velocity excess in different scenarios, allowing them to optimize designs before physical prototypes are built. Moreover, the implications of velocity excess can be seen in real-world applications. For example, when considering the safety of high-speed trains, engineers must account for the velocity excess relative to the surrounding air to minimize the risk of derailment and to enhance passenger comfort. Similarly, in the field of sports, athletes can benefit from understanding how velocity excess affects their performance, whether it’s a swimmer moving through water or a cyclist racing against the wind. In conclusion, the concept of velocity excess is integral to many scientific and engineering disciplines. It provides a framework for analyzing the behavior of objects in motion relative to their environment. By mastering the understanding of velocity excess, professionals can design more efficient systems, improve safety measures, and enhance overall performance in various applications. As technology advances, the importance of accurately measuring and interpreting velocity excess will only continue to grow, highlighting its significance in both theoretical studies and practical implementations.

在物理学的研究中，特别是在流体动力学和空气动力学的背景下，术语速度过剩指的是流体或物体的实际速度与其与周围环境达到平衡时的速度之间的差异。理解速度过剩对于参与设计与流体相互作用的系统的工程师和科学家至关重要，例如飞机、火箭以及各种类型的机械。当物体在流体中移动时，它会经历可以改变其运动的力。速度过剩的概念有助于量化这些变化，并允许更好地预测物体在不同条件下的行为。例如，在空气动力学中，速度过剩可以用来描述飞机相对于周围空气的移动速度有多快。这种速度差异对飞机所受的升力和阻力有显著影响。较高的速度过剩通常会导致升力增加，这对于飞机起飞和保持高度至关重要。然而，它也可能导致阻力增加，这必须得到管理以确保燃油效率和性能。此外，理解速度过剩不仅限于航空领域，还扩展到气象等多个领域，在那里它可以描述风模式，甚至在汽车工业中，它在车辆设计和性能中发挥着作用。工程师们经常使用计算流体动力学（CFD）模拟来可视化和计算不同场景中的速度过剩，使他们能够在物理原型构建之前优化设计。此外，速度过剩的影响可以在现实应用中看到。例如，在考虑高速列车的安全性时，工程师必须考虑相对于周围空气的速度过剩，以最小化脱轨风险并提高乘客舒适度。同样，在体育领域，运动员可以通过理解速度过剩如何影响他们的表现来获益，无论是游泳者在水中移动还是骑自行车的运动员迎风而赛。总之，速度过剩的概念在许多科学和工程学科中都是不可或缺的。它为分析物体相对于其环境的运动行为提供了框架。通过掌握速度过剩的理解，专业人士可以设计更高效的系统，改善安全措施，并在各种应用中提高整体性能。随着技术的进步，准确测量和解释速度过剩的重要性只会继续增长，突显其在理论研究和实际应用中的重要性。