turbulent flow drag reduction

简明释义

湍流减阻

英英释义

例句

1.The research team focused on turbulent flow drag reduction to improve the efficiency of aircraft designs.

研究团队专注于湍流阻力减少以提高飞机设计的效率。

2.Engineers are exploring new materials that can enhance turbulent flow drag reduction in pipelines.

工程师们正在探索新材料，以增强管道中的湍流阻力减少效果。

3.Innovative surface treatments are being developed for turbulent flow drag reduction in wind turbine blades.

为风力涡轮机叶片开发创新表面处理以实现湍流阻力减少。

4.Implementing turbulent flow drag reduction techniques can lead to significant fuel savings in marine vessels.

实施湍流阻力减少技术可以为海洋船舶带来显著的燃料节省。

5.The application of turbulent flow drag reduction in sports car design can improve speed and performance.

在跑车设计中应用湍流阻力减少可以提高速度和性能。

作文

In the realm of fluid dynamics, understanding the principles of flow is crucial for various applications, ranging from aerospace engineering to marine design. One significant phenomenon that engineers and scientists often encounter is turbulence. Turbulent flow refers to a chaotic and irregular movement of fluid particles, which can lead to increased drag when objects move through fluids. This is where the concept of turbulent flow drag reduction (湍流流动阻力降低) becomes essential. The ability to reduce drag in turbulent flow can lead to enhanced efficiency and performance in numerous systems.Turbulence is characterized by eddies and vortices that create fluctuations in velocity and pressure. When an object moves through a turbulent fluid, it experiences resistance due to these chaotic movements. This resistance, known as drag, can significantly impact the speed and fuel efficiency of vehicles, aircraft, and ships. Therefore, engineers are constantly seeking methods to mitigate this drag, particularly in designs that operate under turbulent conditions.One effective approach to achieving turbulent flow drag reduction (湍流流动阻力降低) is through the use of streamlined shapes. By designing objects with smooth, aerodynamic contours, the flow of fluid around them can be optimized, reducing the intensity of turbulence and, consequently, the drag force. For example, modern aircraft are meticulously crafted with sleek wings and fuselages that minimize drag, allowing them to achieve higher speeds while consuming less fuel.Another method involves the application of surface modifications. Techniques such as riblets, which are small grooves or patterns on the surface of an object, can disrupt the formation of turbulent structures and promote a more orderly flow. Research has shown that surfaces treated with riblet technology can experience significant reductions in drag, thus enhancing overall performance. Additionally, the use of superhydrophobic coatings can help in reducing drag by minimizing the wetted surface area, further contributing to turbulent flow drag reduction (湍流流动阻力降低).Fluid additives also play a vital role in turbulent flow drag reduction (湍流流动阻力降低). By introducing certain chemicals or polymers into the fluid, the viscosity can be altered, leading to changes in the flow characteristics. For instance, drag-reducing agents can be added to the water flowing over a ship's hull, resulting in smoother flow patterns and lower resistance. This technique not only improves fuel efficiency but also enhances the speed and maneuverability of marine vessels.Moreover, computational fluid dynamics (CFD) has become an indispensable tool in the study of turbulent flow and drag reduction. Engineers can simulate different flow scenarios and predict how modifications to design or materials will affect drag. This advanced modeling allows for more informed decision-making and optimization before physical prototypes are built, saving both time and resources.In conclusion, the challenge of managing turbulence and reducing drag in fluid dynamics is paramount in many industries. The concept of turbulent flow drag reduction (湍流流动阻力降低) encompasses various strategies, including streamlined design, surface modifications, fluid additives, and advanced simulations. As technology continues to advance, the potential for innovative solutions to enhance efficiency and performance in turbulent flow environments remains promising. Ultimately, the ongoing research and development in this field will contribute to more sustainable and efficient systems across multiple sectors, paving the way for a future where drag is minimized, and performance is maximized.

在流体动力学领域，理解流动原理对各种应用至关重要，从航空航天工程到海洋设计。工程师和科学家经常遇到的一个重要现象是湍流。湍流流动是指流体粒子的混乱和不规则运动，当物体在流体中移动时，这种现象可能导致阻力增加。这就是湍流流动阻力降低（turbulent flow drag reduction）这一概念变得至关重要的原因。在湍流中减少阻力的能力可以提高许多系统的效率和性能。湍流的特点是涡旋和漩涡，它们在速度和压力上产生波动。当一个物体穿过湍流流体时，由于这些混乱的运动，它会经历阻力，这种阻力称为阻力。阻力会显著影响车辆、飞机和船只的速度和燃油效率。因此，工程师们不断寻求减轻这种阻力的方法，特别是在湍流条件下运行的设计中。实现湍流流动阻力降低（turbulent flow drag reduction）的一个有效方法是采用流线型形状。通过设计具有光滑、空气动力学轮廓的物体，可以优化流体围绕它们的流动，从而减少湍流的强度，并因此降低阻力。例如，现代飞机经过精心设计，具有流线型的机翼和机身，最小化阻力，使它们在消耗更少燃料的同时达到更高的速度。另一种方法涉及表面改性。诸如肋条技术等技术，即在物体表面上施加的小凹槽或图案，可以干扰湍流结构的形成并促进更有序的流动。研究表明，使用肋条技术处理的表面可以显著降低阻力，从而提高整体性能。此外，使用超疏水涂层可以通过最小化湿润表面积来帮助降低阻力，进一步促进湍流流动阻力降低（turbulent flow drag reduction）。流体添加剂在湍流流动阻力降低（turbulent flow drag reduction）中也起着至关重要的作用。通过在流体中引入某些化学物质或聚合物，可以改变粘度，从而导致流动特性的变化。例如，可以向流经船体的水中添加减阻剂，从而使流动模式更平滑，降低阻力。这种技术不仅提高了燃油效率，还增强了海洋船舶的速度和机动性。此外，计算流体动力学（CFD）已成为研究湍流和减阻的重要工具。工程师可以模拟不同的流动场景，预测设计或材料的修改将如何影响阻力。这种先进的建模使得在实际构建物理原型之前能够做出更明智的决策和优化，从而节省时间和资源。总之，管理湍流和降低流体动力学中的阻力的挑战在许多行业中都是至关重要的。湍流流动阻力降低（turbulent flow drag reduction）的概念涵盖了多种策略，包括流线型设计、表面改性、流体添加剂和先进的模拟。随着技术的不断进步，在湍流环境中提高效率和性能的创新解决方案的潜力仍然令人期待。最终，该领域持续的研究和开发将有助于在多个部门实现更可持续和高效的系统，为未来铺平道路，使阻力最小化，性能最大化。