fluid drag

简明释义

流体动力阻力

英英释义

例句

1.In swimming, athletes often focus on minimizing fluid drag (流体阻力) to enhance their speed in the water.

在游泳中，运动员通常专注于最小化fluid drag (流体阻力)以提高水中的速度。

2.The engineer conducted tests to measure the fluid drag (流体阻力) on various shapes submerged in water.

工程师进行了测试，以测量各种形状在水中浸没时的fluid drag (流体阻力)。

3.The design of the new car was optimized to reduce fluid drag (流体阻力) and improve fuel efficiency.

新车的设计经过优化，以减少fluid drag (流体阻力)并提高燃油效率。

4.Aerodynamic designs help reduce fluid drag (流体阻力) for aircraft, leading to better performance.

空气动力学设计有助于减少飞机的fluid drag (流体阻力)，从而提高性能。

5.By streamlining the hull, the boat experienced less fluid drag (流体阻力), allowing it to travel faster.

通过流线型船体，这艘船经历了更少的fluid drag (流体阻力)，使其能够更快地航行。

作文

Fluid drag is a term widely used in physics and engineering to describe the resistance an object encounters when moving through a fluid, which can be a liquid or gas. This concept is crucial in various fields such as aerodynamics, hydrodynamics, and even in everyday applications like driving a car or swimming. Understanding fluid drag (流体阻力) is essential for optimizing performance and efficiency in these activities.When an object moves through a fluid, it displaces the fluid in front of it, creating a pressure difference that results in drag. The amount of fluid drag (流体阻力) experienced by the object depends on several factors, including the shape of the object, its speed, the viscosity of the fluid, and the density of the fluid. For instance, a streamlined shape will experience less drag than a blunt shape because it allows the fluid to flow around it more smoothly.In the field of aerodynamics, understanding fluid drag (流体阻力) is vital for designing efficient aircraft. Engineers strive to minimize drag to improve fuel efficiency and overall performance. This is achieved through various design techniques, such as creating sleek fuselages and wings that reduce turbulence. Wind tunnel testing is often employed to study the effects of fluid drag (流体阻力) on model aircraft before they are built at full scale.Similarly, in hydrodynamics, the principles of fluid drag (流体阻力) play a significant role in the design of ships and submarines. Naval architects must consider how the hull shape interacts with water to minimize resistance and maximize speed. Additionally, understanding the effects of fluid drag (流体阻力) can help in the development of energy-efficient vessels that consume less fuel during operation.In sports, athletes are always looking for ways to reduce fluid drag (流体阻力) to enhance their performance. Swimmers, for example, wear specially designed suits that reduce drag in the water, allowing them to swim faster. Cyclists also pay attention to their position on the bike, as a more aerodynamic posture can significantly decrease fluid drag (流体阻力) while riding at high speeds.The study of fluid drag (流体阻力) is also relevant in environmental science. For instance, understanding how pollutants disperse in water bodies involves analyzing the fluid drag (流体阻力) acting on particles. This knowledge can aid in developing better strategies for pollution control and environmental protection.In conclusion, fluid drag (流体阻力) is a fundamental concept that impacts a wide range of fields from engineering to sports. By mastering the principles of fluid drag (流体阻力), professionals can enhance performance, improve designs, and contribute to innovative solutions in various industries. As we continue to explore the dynamics of fluids, the importance of understanding fluid drag (流体阻力) will only grow, leading to advancements that benefit society as a whole.