wave drag

简明释义

兴波阻力

英英释义

例句

1.Engineers used computational fluid dynamics to analyze wave drag in various hull shapes.

工程师们使用计算流体动力学分析不同船体形状中的波浪阻力。

2.Reducing wave drag can significantly improve fuel efficiency for large vessels.

减少波浪阻力可以显著提高大型船舶的燃油效率。

3.Innovative materials were tested to see their impact on wave drag reduction.

测试了创新材料以观察其对波浪阻力减少的影响。

4.The design of the new ship was optimized to reduce wave drag.

新船的设计经过优化，以减少波浪阻力。

5.The research focused on how wave drag affects the speed of racing yachts.

研究集中在波浪阻力如何影响赛车帆船的速度。

作文

Understanding the concept of wave drag is crucial for anyone interested in fluid dynamics and aerodynamics. In simple terms, wave drag refers to the resistance experienced by an object as it moves through a fluid, particularly when it travels at high speeds. This phenomenon is most commonly observed in aircraft and marine vessels, where the shape and speed of the object significantly influence the amount of drag encountered. As an object approaches the speed of sound, it generates shock waves, which lead to increased wave drag. These shock waves create areas of high pressure in front of the object, effectively increasing the force required to maintain its velocity.To better understand wave drag, it is essential to consider the principles of fluid dynamics. When an object moves through a fluid, it displaces the fluid around it, creating a wake that can lead to turbulence. At subsonic speeds, the flow remains smooth, but as the object accelerates towards transonic speeds, the flow begins to compress, resulting in shock waves. These shock waves are responsible for a significant increase in wave drag, making it challenging for aircraft to break the sound barrier.Aircraft designers often strive to minimize wave drag through careful aerodynamic shaping. For instance, a streamlined fuselage can help reduce the intensity of shock waves generated during flight. Additionally, wing design plays a vital role in managing wave drag. Wings with a higher aspect ratio tend to produce less drag than those with a lower aspect ratio, especially at high speeds. Engineers utilize computational fluid dynamics (CFD) simulations to analyze and optimize designs, aiming to achieve maximum efficiency while minimizing wave drag.In marine applications, wave drag is also a significant factor. Ships and submarines experience resistance due to the waves created by their hulls as they move through water. The design of the hull can greatly affect the amount of wave drag experienced. For example, a sharper bow can cut through waves more efficiently, reducing turbulence and overall resistance. Similarly, submarines are designed to minimize wave drag to enhance their speed and maneuverability underwater.The implications of wave drag extend beyond just performance; they also impact fuel efficiency and operational costs. For both aircraft and ships, reducing wave drag can lead to lower fuel consumption, which is a critical consideration for airlines and shipping companies alike. In an age where sustainability is paramount, understanding and mitigating wave drag becomes even more essential.In conclusion, wave drag is a fundamental concept in the fields of aerodynamics and hydrodynamics. Its effects are seen in various applications, from aviation to marine engineering. By optimizing designs to minimize wave drag, engineers can enhance performance, improve fuel efficiency, and contribute to more sustainable practices in transportation. As technology advances, our understanding of wave drag will continue to evolve, paving the way for innovations that push the boundaries of speed and efficiency in fluid dynamics.

理解wave drag的概念对于任何对流体动力学和空气动力学感兴趣的人来说都是至关重要的。简单来说，wave drag指的是物体在流体中移动时所遇到的阻力，特别是在高速运动时。这一现象在飞机和海洋船只中最为常见，其中物体的形状和速度显著影响遇到的阻力数量。当物体接近音速时，会产生冲击波，从而导致wave drag的增加。这些冲击波在物体前方形成高压区域，实际上增加了维持其速度所需的力量。为了更好地理解wave drag，了解流体动力学的原理至关重要。当物体在流体中移动时，它会排开周围的流体，形成一个尾流，这可能导致湍流。在亚音速下，流动保持平滑，但随着物体加速接近超音速，流动开始压缩，从而产生冲击波。这些冲击波是wave drag显著增加的原因，使得飞机突破音障变得具有挑战性。飞机设计师通常努力通过精心的空气动力学造型来最小化wave drag。例如，流线型机身可以帮助降低在飞行过程中产生的冲击波强度。此外，机翼设计在管理wave drag方面也起着至关重要的作用。高纵横比的机翼在高速下往往比低纵横比的机翼产生更少的阻力。工程师利用计算流体动力学（CFD）模拟来分析和优化设计，旨在实现最大效率，同时最小化wave drag。在海洋应用中，wave drag也是一个重要因素。船只和潜艇在水中移动时，由于其船体产生的波浪而经历阻力。船体的设计可以极大地影响所经历的wave drag量。例如，尖锐的船头可以更有效地切割波浪，减少湍流和整体阻力。同样，潜艇的设计旨在最小化wave drag，以增强其在水下的速度和机动性。wave drag的影响不仅限于性能；它们还影响燃油效率和运营成本。对于飞机和船只而言，减少wave drag可以降低燃料消耗，这是航空公司和航运公司考虑的关键因素。在可持续性至关重要的时代，理解和减轻wave drag变得更加必要。总之，wave drag是空气动力学和水动力学领域的基本概念。其影响在航空和海洋工程等各种应用中都能看到。通过优化设计以最小化wave drag，工程师可以提高性能、改善燃油效率，并为运输中的更可持续实践做出贡献。随着技术的进步，我们对wave drag的理解将继续发展，为推动流体动力学中速度和效率的创新铺平道路。