absolute roughness

简明释义

绝对粗糙度;

英英释义

例句

1.In fluid dynamics, absolute roughness 绝对粗糙度 is a critical parameter for determining friction losses.

在流体动力学中，绝对粗糙度 absolute roughness是确定摩擦损失的关键参数。

2.When designing a water distribution system, consider the absolute roughness 绝对粗糙度 of the pipes used.

在设计供水系统时，考虑使用管道的绝对粗糙度 absolute roughness。

3.A smoother surface results in a lower absolute roughness 绝对粗糙度, which can improve efficiency.

更光滑的表面导致较低的绝对粗糙度 absolute roughness，这可以提高效率。

4.Different materials have varying absolute roughness 绝对粗糙度 values, affecting their performance in fluid systems.

不同材料具有不同的绝对粗糙度 absolute roughness值，影响它们在流体系统中的性能。

5.The engineer calculated the absolute roughness 绝对粗糙度 of the pipe to ensure proper flow rates.

工程师计算了管道的绝对粗糙度 absolute roughness以确保适当的流量。

作文

In the field of fluid mechanics, understanding the concept of absolute roughness is crucial for engineers and scientists alike. Absolute roughness refers to the measure of the roughness of a surface that affects the flow of fluids over it. This parameter plays a significant role in determining the frictional losses that occur when a fluid moves through a conduit, such as a pipe or channel. The rougher the surface, the higher the frictional resistance, which can impact the efficiency of fluid transport systems.The value of absolute roughness is typically measured in millimeters and varies depending on the material of the surface. For instance, a smooth pipe made of glass may have an absolute roughness value close to 0.001 mm, while a rough concrete surface can have an absolute roughness value exceeding 0.5 mm. Understanding these values helps engineers design more efficient systems by allowing them to predict how much energy will be lost due to friction as fluid flows through various materials.When designing piping systems, engineers must consider the absolute roughness of the materials they choose. For example, if a system requires high flow rates, selecting materials with lower absolute roughness values can reduce energy consumption and improve overall performance. Conversely, in applications where turbulence is beneficial, such as mixing processes, surfaces with higher absolute roughness may be preferred.Additionally, the absolute roughness of a surface can change over time due to factors like corrosion, sediment buildup, or wear. Regular maintenance and monitoring are essential to ensure that the absolute roughness remains within acceptable limits. If the roughness increases significantly, it may lead to higher energy costs and reduced system efficiency.In summary, the concept of absolute roughness is vital in fluid dynamics, influencing the design and operation of various engineering systems. By taking into account the absolute roughness of surfaces, engineers can optimize fluid flow, reduce energy consumption, and enhance the overall performance of their systems. Understanding this parameter not only aids in effective design but also ensures that systems operate efficiently over their lifespan, ultimately contributing to sustainability and cost-effectiveness in engineering practices.

在流体力学领域，理解绝对粗糙度的概念对于工程师和科学家来说至关重要。绝对粗糙度是指影响流体在表面上流动的表面粗糙度的测量。这个参数在确定流体通过管道或通道时发生的摩擦损失中起着重要作用。表面越粗糙，摩擦阻力就越大，这会影响流体输送系统的效率。绝对粗糙度的值通常以毫米为单位测量，并根据表面的材料而有所不同。例如，一根光滑的玻璃管的绝对粗糙度值可能接近0.001毫米，而粗糙的混凝土表面则可能超过0.5毫米。理解这些数值有助于工程师通过预测流体在各种材料中流动时将损失多少能量，从而设计出更高效的系统。在设计管道系统时，工程师必须考虑所选择材料的绝对粗糙度。例如，如果系统需要高流速，选择具有较低绝对粗糙度值的材料可以减少能耗，提高整体性能。相反，在某些应用中，例如混合过程，粗糙度较高的表面可能更受欢迎，因为湍流是有益的。此外，表面的绝对粗糙度可能会随着时间的推移而变化，原因包括腐蚀、沉积物积聚或磨损。定期维护和监测对于确保绝对粗糙度保持在可接受的范围内至关重要。如果粗糙度显著增加，可能会导致更高的能源成本和系统效率降低。总之，绝对粗糙度的概念在流体动力学中至关重要，影响着各种工程系统的设计和操作。通过考虑表面的绝对粗糙度，工程师可以优化流体流动，减少能耗，提高系统的整体性能。理解这一参数不仅有助于有效设计，还确保系统在其生命周期内高效运行，最终有助于工程实践中的可持续性和成本效益。