pressure loss

简明释义

压力损失

英英释义

例句

1.To minimize pressure loss 压力损失, we need to use larger diameter pipes.

为了最小化压力损失 pressure loss，我们需要使用更大直径的管道。

2.The HVAC system experienced significant pressure loss 压力损失 due to clogged filters.

由于过滤器堵塞，暖通空调系统经历了显著的压力损失 pressure loss。

3.During the test, we measured the pressure loss 压力损失 across the valve.

在测试中，我们测量了阀门两侧的压力损失 pressure loss。

4.The design of the ductwork can greatly affect the pressure loss 压力损失 in the system.

管道的设计可以极大地影响系统中的压力损失 pressure loss。

5.The engineer calculated the pressure loss 压力损失 in the pipeline to ensure efficient fluid transport.

工程师计算了管道中的压力损失 pressure loss，以确保流体运输的效率。

作文

In the field of fluid dynamics, understanding the concept of pressure loss is essential for designing efficient systems. Pressure loss refers to the reduction in pressure that occurs as a fluid flows through a pipe or duct. This phenomenon can be attributed to various factors, including friction, changes in elevation, and obstructions in the flow path. Engineers must account for pressure loss when designing piping systems to ensure that fluids are delivered at the required pressure levels.One of the primary causes of pressure loss is friction between the fluid and the walls of the pipe. As the fluid moves, it encounters resistance, which results in a decrease in pressure. The rougher the surface of the pipe, the greater the frictional losses. For instance, if a fluid flows through a smooth pipe, it will experience less pressure loss compared to flowing through a pipe with a rough interior. Therefore, selecting the appropriate materials for piping is crucial in minimizing pressure loss.Another factor contributing to pressure loss is the change in elevation. When a fluid is pumped uphill, it must overcome gravitational forces, leading to an increase in pressure loss. Conversely, when fluid flows downhill, it may gain pressure; however, any bends or turns in the piping system can still cause significant pressure loss. Understanding the topography of the installation site is vital for engineers to predict how elevation changes will affect fluid dynamics.Additionally, obstructions such as valves, fittings, and filters can cause pressure loss. These components disrupt the smooth flow of fluid and create turbulence, resulting in energy loss and reduced pressure. For example, a valve that is partially closed can significantly increase pressure loss, leading to inefficiencies in the system. Therefore, careful consideration must be given to the placement and type of these components to minimize pressure loss.To quantify pressure loss, engineers often use the Darcy-Weisbach equation, which takes into account the length and diameter of the pipe, the flow rate, and the friction factor. This equation allows for precise calculations to ensure that the system meets the required performance criteria. By optimizing the design based on these calculations, engineers can reduce pressure loss and enhance the overall efficiency of the fluid transport system.In conclusion, pressure loss plays a critical role in fluid dynamics and engineering design. It is influenced by various factors, including friction, elevation changes, and obstructions. Understanding these elements enables engineers to design systems that minimize pressure loss and ensure efficient fluid transport. By applying the principles of fluid dynamics and utilizing equations like the Darcy-Weisbach, engineers can create effective solutions that meet the demands of modern infrastructure. Ultimately, addressing pressure loss not only improves system performance but also contributes to energy conservation and sustainability in engineering practices.

在流体动力学领域，理解压力损失的概念对于设计高效的系统至关重要。压力损失是指流体在管道或导管中流动时所发生的压力减少。这种现象可以归因于多种因素，包括摩擦、海拔变化和流动路径中的障碍物。工程师在设计管道系统时必须考虑压力损失，以确保流体以所需的压力水平输送。造成压力损失的主要原因之一是流体与管道壁之间的摩擦。当流体移动时，它会遇到阻力，从而导致压力降低。管道的表面越粗糙，摩擦损失就越大。例如，如果流体流经光滑的管道，它将经历比流经内部粗糙的管道更少的压力损失。因此，选择合适的管道材料对于最小化压力损失至关重要。另一个导致压力损失的因素是海拔变化。当流体被泵送到高处时，它必须克服重力，导致压力损失增加。相反，当流体流向低处时，它可能会获得压力；然而，任何管道系统中的弯头或转弯仍然可能导致显著的压力损失。了解安装现场的地形对于工程师预测海拔变化将如何影响流体动力学至关重要。此外，阀门、配件和过滤器等障碍物也可能导致压力损失。这些组件会扰乱流体的平稳流动并产生湍流，导致能量损失和压力降低。例如，部分关闭的阀门可能会显著增加压力损失，从而导致系统效率降低。因此，必须仔细考虑这些组件的放置和类型，以最小化压力损失。为了量化压力损失，工程师通常使用达西-韦斯巴赫方程，该方程考虑了管道的长度和直径、流量及摩擦因子。这个方程可以进行精确计算，以确保系统满足所需的性能标准。通过基于这些计算优化设计，工程师可以减少压力损失，提高流体运输系统的整体效率。总之，压力损失在流体动力学和工程设计中发挥着关键作用。它受到摩擦、海拔变化和障碍物等多种因素的影响。理解这些元素使工程师能够设计出最小化压力损失并确保高效流体运输的系统。通过应用流体动力学原理并利用达西-韦斯巴赫方程，工程师可以创建满足现代基础设施需求的有效解决方案。最终，解决压力损失不仅提高了系统性能，还有助于节能和可持续发展。