turbulent drag

简明释义

湍流阻力

英英释义

例句

1.Reducing turbulent drag is crucial for high-speed trains to maintain their velocity.

减少湍流阻力对于高速列车保持速度至关重要。

2.The design of the aircraft wings must minimize turbulent drag to improve fuel efficiency.

飞机机翼的设计必须最小化湍流阻力以提高燃油效率。

3.Innovative materials are being tested to reduce turbulent drag on ship hulls.

正在测试创新材料以减少船体上的湍流阻力。

4.The research focused on how turbulent drag influences the performance of underwater vehicles.

研究集中在湍流阻力如何影响水下交通工具的性能。

5.Engineers studied the turbulent drag effects on various car shapes in a wind tunnel.

工程师们在风洞中研究了不同汽车形状对湍流阻力的影响。

作文

In the field of fluid dynamics, understanding the forces acting on objects moving through fluids is crucial. One of these forces is known as turbulent drag, which refers to the resistance an object experiences when it moves through a turbulent flow of fluid. This phenomenon is particularly important in various applications, including aerodynamics, marine engineering, and even sports science. When an object moves through a fluid, it displaces the fluid around it, creating a wake. In laminar flow, this wake is orderly, leading to lower drag. However, when the flow becomes turbulent, the wake becomes chaotic, resulting in increased energy loss and higher turbulent drag.

For instance, consider the design of an airplane wing. Engineers must account for turbulent drag when optimizing the shape and surface texture of the wing. A smooth, streamlined wing will experience less turbulent drag compared to a rough or irregularly shaped one. This is because a smooth surface encourages laminar flow, while a rough surface disrupts the flow, leading to turbulence and increased drag. Consequently, minimizing turbulent drag is essential for improving fuel efficiency and overall performance of aircraft.

Similarly, in the field of marine engineering, ships are designed with hull shapes that reduce turbulent drag. The goal is to create a hull that allows water to flow smoothly around it, thereby reducing resistance and increasing speed. Shipbuilders often conduct extensive testing in wind and water tunnels to analyze how different hull designs perform under various conditions. By understanding and mitigating turbulent drag, engineers can enhance the vessel's performance and reduce fuel consumption.

Moreover, turbulent drag is not limited to vehicles and vessels. In sports, athletes can also benefit from understanding this concept. For example, cyclists wear aerodynamic clothing and use specially designed bikes to minimize turbulent drag. The positioning of their bodies during a race is crucial; by adopting a low profile, cyclists can reduce the amount of turbulence created by their movement, thereby decreasing drag and increasing speed.

In summary, turbulent drag plays a significant role in various fields where fluid dynamics is relevant. Whether in aviation, marine engineering, or sports, understanding how to manage this force can lead to improved performance and efficiency. As technology advances, researchers continue to explore new ways to reduce turbulent drag, leading to innovations that push the boundaries of what is possible in design and engineering. By focusing on the principles of fluid dynamics and the impact of turbulent drag, we can make informed decisions that enhance our understanding and application of these concepts in real-world scenarios.

在流体动力学领域，理解物体在流体中运动时所受的力至关重要。其中一个力被称为turbulent drag，它指的是物体在湍流流动中移动时所经历的阻力。这一现象在各种应用中都非常重要，包括空气动力学、海洋工程甚至运动科学。当物体在流体中移动时，它会排开周围的流体，形成尾流。在层流中，这个尾流是有序的，从而导致较低的阻力。然而，当流动变得湍急时，尾流变得混乱，导致能量损失增加和更高的turbulent drag。

例如，考虑飞机机翼的设计。工程师在优化机翼的形状和表面纹理时必须考虑turbulent drag。光滑、流线型的机翼将比粗糙或不规则形状的机翼体验到更少的turbulent drag。这是因为光滑的表面有助于层流，而粗糙的表面则干扰流动，导致湍流和增加的阻力。因此，减少turbulent drag对于提高飞机的燃油效率和整体性能至关重要。

同样，在海洋工程领域，船只的设计也考虑到减少turbulent drag。目标是创建一个能够让水流平稳绕过的船体，从而减少阻力并增加速度。造船商通常在风洞和水槽中进行广泛测试，以分析不同船体设计在各种条件下的表现。通过理解和减轻turbulent drag，工程师可以提高船只的性能并减少燃料消耗。

此外，turbulent drag不仅限于车辆和船只。在体育运动中，运动员也可以受益于对这一概念的理解。例如，骑自行车的人穿着空气动力学服装，使用专门设计的自行车来最小化turbulent drag。他们在比赛中的身体姿势至关重要；通过采取低姿态，骑自行车的人可以减少因运动产生的湍流，从而降低阻力并提高速度。

总之，turbulent drag在流体动力学相关的各个领域中扮演着重要角色。无论是在航空、海洋工程还是体育运动中，理解如何管理这一力量都可以提高性能和效率。随着技术的进步，研究人员继续探索减少turbulent drag的新方法，推动设计和工程可能性的边界。通过关注流体动力学原理及其对turbulent drag的影响，我们可以做出明智的决策，增强我们对这些概念在现实世界场景中的理解和应用。