drag resistance

简明释义

拖曳阻力

英英释义

例句

1.The speedboat's hull is designed to reduce drag resistance for faster speeds on water.

快艇的船体设计旨在减少水上的阻力以提高速度。

2.Athletes often wear streamlined suits to minimize drag resistance while swimming.

运动员常穿流线型泳衣以最小化游泳时的阻力。

3.In cycling, a rider's position can greatly affect drag resistance and overall performance.

在骑自行车时，骑行者的姿势会大大影响阻力和整体表现。

4.Aerofoil shapes are used in aircraft wings to decrease drag resistance during flight.

飞机机翼采用气动形状以减少飞行中的阻力。

5.The design of the new car focuses on reducing drag resistance to improve fuel efficiency.

新车的设计专注于减少阻力以提高燃油效率。

作文

In the world of physics and engineering, understanding the concept of drag resistance is crucial for various applications, especially in the fields of aerodynamics and hydrodynamics. Drag resistance refers to the forces that oppose the motion of an object through a fluid, which can be air or water. This phenomenon plays a significant role in the design of vehicles, aircraft, and even sports equipment. By minimizing drag resistance, engineers can enhance performance, improve fuel efficiency, and ensure greater stability during motion.The basic principle behind drag resistance lies in the interaction between the surface of an object and the fluid it moves through. As an object travels, it displaces the fluid around it, creating turbulence and pressure differences that result in drag. The amount of drag resistance experienced by an object depends on several factors, including its shape, size, speed, and the viscosity of the fluid. For instance, a streamlined shape, such as that of a fish or a specialized racing car, is designed to reduce drag resistance and allow for smoother movement through the water or air.In the automotive industry, manufacturers invest heavily in wind tunnel testing to evaluate how different designs affect drag resistance. A car with lower drag resistance will not only achieve higher speeds but will also consume less fuel, making it more environmentally friendly. Similarly, in aviation, aircraft are engineered with sleek profiles to minimize drag resistance, which helps them fly more efficiently and reduces the cost of air travel.In the realm of sports, drag resistance can significantly impact an athlete's performance. Swimmers, for example, wear specially designed swimsuits that reduce drag resistance in the water, allowing them to swim faster and conserve energy. Cyclists also benefit from aerodynamic helmets and clothing that minimize drag resistance, enabling them to achieve better speeds during races. Even in activities like running, where air resistance plays a role, athletes often seek out gear that helps reduce drag resistance to improve their overall performance.Understanding drag resistance is not just limited to professional fields; it has practical implications in everyday life as well. For instance, when riding a bicycle, a rider can reduce drag resistance by adopting a more aerodynamic position. This simple adjustment can lead to a noticeable difference in speed and energy expenditure. Similarly, when designing homes or buildings, architects consider drag resistance to optimize energy efficiency and comfort, especially in areas prone to high winds.In conclusion, drag resistance is a fundamental concept that influences a wide range of disciplines, from engineering to sports. By understanding how drag resistance works and how to minimize it, we can improve the efficiency and performance of various systems and activities. Whether it's designing a more aerodynamic vehicle, enhancing an athlete's performance, or simply enjoying a bike ride, recognizing the importance of drag resistance can lead to better outcomes and innovations in our daily lives.

在物理和工程的世界中，理解“阻力”这一概念对各种应用至关重要，尤其是在空气动力学和水动力学领域。“阻力”指的是反对物体通过流体（可以是空气或水）运动的力量。这种现象在车辆、飞机甚至体育设备的设计中发挥着重要作用。通过最小化“阻力”，工程师可以提高性能、改善燃油效率，并确保在运动过程中的更大稳定性。“阻力”背后的基本原理在于物体表面与其所移动流体之间的相互作用。当物体移动时，它会排开周围的流体，产生湍流和压力差，从而导致阻力。物体所经历的“阻力”的大小取决于多个因素，包括其形状、大小、速度和流体的粘度。例如，鱼或专用赛车的流线型形状旨在减少“阻力”，使其能够更顺畅地穿过水或空气。在汽车工业中，制造商大量投资于风洞测试，以评估不同设计如何影响“阻力”。一辆具有较低“阻力”的汽车不仅能达到更高的速度，还能消耗更少的燃料，使其更加环保。同样，在航空领域，飞机以流线型轮廓设计，以最小化“阻力”，这有助于它们更高效地飞行并降低航空旅行的成本。在体育领域，“阻力”可以显著影响运动员的表现。例如，游泳运动员穿着专门设计的泳衣，以减少水中的“阻力”，使他们能够游得更快、节省能量。自行车手也受益于空气动力学头盔和服装，最大限度地减少“阻力”，使他们在比赛中达到更好的速度。即使在跑步等活动中，空气阻力也会发挥作用，运动员通常会寻找可以帮助减少“阻力”的装备，以提高整体表现。理解“阻力”不仅限于专业领域；它在日常生活中也具有实际意义。例如，在骑自行车时，骑车者可以通过采用更气动的姿势来减少“阻力”。这个简单的调整可以显著提高速度和能量消耗。同样，在设计房屋或建筑时，建筑师会考虑“阻力”以优化能源效率和舒适度，特别是在高风速地区。总之，“阻力”是一个基本概念，影响着从工程到体育的广泛学科。通过理解“阻力”的工作原理以及如何最小化它，我们可以提高各种系统和活动的效率和性能。无论是设计更具空气动力学的车辆、增强运动员的表现，还是简单地享受骑自行车的乐趣，认识到“阻力”的重要性都能带来更好的结果和创新，改善我们的日常生活。