profile drag

简明释义

形状阻力

英英释义

例句

1.By optimizing the design, the researchers managed to decrease the profile drag of the drone.

通过优化设计，研究人员成功降低了无人机的阻力。

2.Wind tunnel tests are often conducted to measure profile drag on various models.

风洞测试通常用于测量各种模型的阻力。

3.The engineer explained that reducing the profile drag can significantly improve the vehicle's fuel efficiency.

工程师解释说，减少阻力可以显著提高车辆的燃油效率。

4.The team used software to simulate how changes in shape affect profile drag during flight.

团队使用软件模拟形状变化如何影响飞行中的阻力。

5.In aerodynamics, understanding profile drag is crucial for designing high-performance aircraft.

在空气动力学中，理解阻力对于设计高性能飞机至关重要。

作文

In the world of aerodynamics, the term profile drag refers to the resistance an object faces as it moves through a fluid, such as air or water. This concept is crucial in various fields, including aviation, automotive design, and even sports. Understanding profile drag can lead to more efficient designs that enhance performance and reduce fuel consumption. To illustrate this, let’s consider the design of an airplane. Engineers strive to create aircraft with streamlined shapes that minimize profile drag. A well-designed wing, for instance, will allow air to flow smoothly over its surface, reducing turbulence and, consequently, the drag force acting against the plane's forward motion. When profile drag is minimized, the airplane can achieve greater speeds and improved fuel efficiency, which is essential for airlines looking to cut costs and reduce their environmental impact.Similarly, in the automotive industry, car manufacturers focus on creating vehicles with aerodynamic profiles. A car with a sleek design experiences less profile drag, which translates to better fuel economy and enhanced performance. This is why many sports cars feature low, wide bodies with smooth curves; they are designed to slice through the air rather than push against it. By reducing profile drag, these vehicles can accelerate faster and maintain higher speeds with less energy expenditure.The concept of profile drag is not limited to large vehicles; it also applies to everyday objects, such as bicycles. Cyclists often adopt specific riding positions to reduce profile drag when racing. By leaning forward and tucking in their elbows, they can minimize their frontal area, allowing them to cut through the air more efficiently. This reduction in drag can make a significant difference in race times, highlighting the importance of understanding aerodynamics in competitive sports.Moreover, the principles behind profile drag extend to various recreational activities. For instance, swimmers aim to reduce their drag in the water by adopting streamlined body positions. Coaches often emphasize the importance of technique and form to help athletes move through the water with minimal resistance. Just as in air, water creates drag, and understanding how to manage profile drag can lead to improved performance in the pool.In conclusion, profile drag plays a vital role in the efficiency and performance of various modes of transportation and athletic endeavors. From airplanes to cars and bicycles to swimmers, minimizing drag is key to achieving optimal results. As technology continues to advance, the study of profile drag will remain an important area of research, helping engineers and athletes alike to push the boundaries of what is possible. Understanding and applying the principles of profile drag can lead to innovations that not only improve speed and efficiency but also contribute to a more sustainable future in transportation and sports.

在空气动力学的世界中，术语profile drag指的是一个物体在流体（如空气或水）中移动时所面临的阻力。这个概念在航空、汽车设计甚至体育等多个领域至关重要。理解profile drag可以导致更高效的设计，从而提高性能并减少燃料消耗。 为了说明这一点，让我们考虑飞机的设计。工程师们努力创造流线型的飞机，以最小化profile drag。例如，一个设计良好的机翼将允许空气平稳地流过其表面，从而减少湍流，因此减少作用于飞机前进运动的阻力。当profile drag被最小化时，飞机可以达到更高的速度和更好的燃油效率，这对希望降低成本和减少环境影响的航空公司至关重要。同样，在汽车工业中，汽车制造商专注于创造具有空气动力学特征的车辆。一辆设计流畅的汽车经历的profile drag较少，这转化为更好的燃油经济性和更高的性能。这就是为什么许多跑车具有低矮、宽大的车身和光滑的曲线；它们被设计成切割空气，而不是抵抗空气。通过减少profile drag，这些车辆可以更快加速，并以更少的能量消耗保持更高的速度。profile drag的概念不仅限于大型车辆；它也适用于日常物品，例如自行车。骑自行车的人在比赛中常常采取特定的骑行姿势，以减少profile drag。通过向前倾斜并收紧肘部，他们可以最小化正面面积，从而更有效地穿过空气。这种阻力的减少可以对比赛时间产生显著影响，突显了在竞技体育中理解空气动力学的重要性。此外，profile drag背后的原理延伸到各种娱乐活动。例如，游泳者旨在通过采用流线型的身体姿势来减少在水中的阻力。教练们经常强调技术和形式的重要性，以帮助运动员以最小的阻力在水中移动。就像在空气中一样，水也会产生阻力，理解如何管理profile drag可以提高游泳池的表现。总之，profile drag在各种交通工具和运动活动的效率和性能中扮演着至关重要的角色。从飞机到汽车，从自行车到游泳者，最小化阻力是实现最佳结果的关键。随着技术的不断进步，profile drag的研究将仍然是一个重要的研究领域，帮助工程师和运动员突破可能的界限。理解和应用profile drag的原理可以导致创新，不仅提高速度和效率，还为交通和体育的可持续未来做出贡献。