center of drag

简明释义

阻力中心

英英释义

例句

1.During the wind tunnel tests, the center of drag 阻力中心 was identified to be further back than expected.

在风洞测试中，阻力中心 center of drag被发现位于预期的更后面。

2.To improve fuel efficiency, engineers must optimize the center of drag 阻力中心 in car design.

为了提高燃油效率，工程师必须优化汽车设计中的阻力中心 center of drag。

3.In sailing, understanding the center of drag 阻力中心 helps in adjusting the sails for better performance.

在帆船运动中，理解阻力中心 center of drag有助于调整帆以获得更好的表现。

4.The center of drag 阻力中心 can shift depending on the load distribution in the vehicle.

根据车辆的负载分布，阻力中心 center of drag可能会发生变化。

5.The aerodynamic design of the aircraft is heavily influenced by the location of the center of drag 阻力中心.

飞机的气动设计受到阻力中心 center of drag位置的重大影响。

作文

In the field of aerodynamics, understanding the forces acting on an object in motion is crucial. One of the key concepts is the center of drag, which refers to the point where the total drag force can be considered to act. This concept is particularly important in the design and analysis of various vehicles, including airplanes, cars, and even bicycles. The center of drag plays a significant role in determining how efficiently an object moves through a fluid, such as air or water.When an object moves through a fluid, it experiences resistance, known as drag. This drag force is dependent on several factors, including the shape of the object, its speed, and the properties of the fluid. The center of drag is not a fixed point; rather, it can change based on the object's orientation and the flow conditions around it. For instance, a streamlined vehicle will have a different center of drag compared to a boxy one due to differences in airflow.To illustrate this concept, consider the design of an airplane. Engineers must carefully calculate the center of drag to optimize performance and fuel efficiency. If the center of drag is too far back relative to the center of lift, the aircraft may become unstable, leading to difficulties in control. Conversely, if the center of drag is positioned correctly, it allows for smoother airflow over the wings and fuselage, enhancing lift and reducing fuel consumption.In automotive design, the center of drag is equally important. Manufacturers aim to create vehicles that minimize drag to improve fuel efficiency and performance. By analyzing the center of drag, engineers can make informed decisions about the car's shape, size, and surface texture. For example, sports cars are designed with sleek lines and aerodynamic features to ensure that the center of drag is as low as possible, allowing for higher speeds and better handling.Moreover, the center of drag can also be influenced by external factors such as wind conditions and road surfaces. During windy conditions, the drag experienced by a vehicle can shift, affecting its stability and control. Understanding the dynamics of the center of drag helps engineers develop strategies to mitigate these effects, ensuring safer and more efficient designs.In summary, the center of drag is a fundamental concept in the study of aerodynamics and fluid dynamics. It represents the point where the total drag force acts on an object, influencing its performance and stability. Whether in aviation or automotive engineering, recognizing and optimizing the center of drag is essential for achieving efficiency and effectiveness in design. As technology advances, the ability to accurately predict and manipulate the center of drag will continue to play a pivotal role in the development of faster, safer, and more efficient vehicles.

在空气动力学领域，理解作用于运动物体的力是至关重要的。其中一个关键概念是阻力中心，它指的是可以认为总阻力作用的点。这个概念在飞机、汽车甚至自行车等各种交通工具的设计和分析中尤为重要。阻力中心在决定物体如何有效地穿过流体（如空气或水）方面发挥着重要作用。当物体在流体中移动时，会遇到称为阻力的抵抗力。这个阻力与多个因素有关，包括物体的形状、速度以及流体的特性。阻力中心并不是一个固定的点；相反，它可以根据物体的方向和周围的流动条件而变化。例如，一个流线型的交通工具与一个方形的交通工具相比，其阻力中心会有所不同，因为气流的变化。为了说明这个概念，可以考虑飞机的设计。工程师必须仔细计算阻力中心以优化性能和燃油效率。如果阻力中心相对于升力中心过于靠后，飞机可能会变得不稳定，导致控制困难。相反，如果阻力中心的位置正确，则可以使气流在机翼和机身上更顺畅，从而增强升力并减少燃油消耗。在汽车设计中，阻力中心同样重要。制造商旨在设计出能够最小化阻力的车辆，以提高燃油效率和性能。通过分析阻力中心，工程师可以对汽车的形状、大小和表面纹理做出明智的决策。例如，跑车的设计具有流线型的轮廓和空气动力学特征，以确保阻力中心尽可能低，从而实现更高的速度和更好的操控性。此外，阻力中心也会受到外部因素的影响，例如风的条件和路面的状况。在多风的情况下，车辆所经历的阻力可能会发生变化，从而影响其稳定性和控制。理解阻力中心的动态特性有助于工程师制定减轻这些影响的策略，从而确保设计的安全性和效率。总之，阻力中心是空气动力学和流体动力学研究中的一个基本概念。它代表了作用于物体的总阻力的点，影响着其性能和稳定性。无论是在航空还是汽车工程中，识别和优化阻力中心对于实现设计的效率和有效性至关重要。随着技术的进步，准确预测和操控阻力中心的能力将继续在开发更快、更安全和更高效的交通工具中发挥关键作用。