effective sectional area

简明释义

有效剖面面积

英英释义

例句

1.When calculating the drag force, the effective sectional area of the vehicle must be considered.

在计算阻力时，必须考虑车辆的有效截面面积。

2.The effective sectional area of a beam affects its bending resistance under load.

梁的有效截面面积影响其在载荷下的抗弯能力。

3.In HVAC design, the effective sectional area of ducts is crucial for proper air distribution.

在暖通空调设计中，管道的有效截面面积对正确的空气分布至关重要。

4.To improve safety, the effective sectional area of the bridge was analyzed for load capacity.

为了提高安全性，桥梁的有效截面面积被分析以确定承载能力。

5.The engineer calculated the effective sectional area of the pipe to ensure optimal fluid flow.

工程师计算了管道的有效截面面积以确保最佳的流体流动。

作文

The concept of effective sectional area is crucial in various fields of engineering and physics. It refers to the area that effectively contributes to the flow or transfer of a particular quantity, such as fluid flow, heat transfer, or electromagnetic fields. Understanding this concept helps engineers design more efficient systems, whether they are focused on aerodynamics, hydrodynamics, or electrical circuits. For instance, when designing a pipe system for transporting water, the effective sectional area of the pipes can significantly influence the flow rate and pressure drop. If the area is too small, it can lead to increased resistance and reduced efficiency. Therefore, calculating the effective sectional area allows engineers to optimize the dimensions of the pipes to ensure smooth and efficient water flow.In another example, consider the field of aerodynamics, where the effective sectional area plays a vital role in determining the drag force acting on an aircraft. The shape and orientation of the aircraft affect its effective sectional area, which in turn influences its performance and fuel efficiency. Engineers use wind tunnel tests to measure the drag and calculate the effective sectional area to make informed design choices that enhance the aircraft's aerodynamic properties.Moreover, the effective sectional area is also significant in the context of electrical engineering. When designing circuits, the effective sectional area of conductors affects their resistance and overall performance. A larger effective sectional area reduces resistance, allowing for better current flow and minimizing energy losses. This is particularly important in high-power applications where efficiency is paramount.In summary, the effective sectional area is a fundamental concept that impacts various engineering disciplines. By understanding how to calculate and optimize this area, engineers can improve the performance and efficiency of their designs. Whether it is in fluid dynamics, aerodynamics, or electrical systems, the importance of the effective sectional area cannot be overstated. It serves as a key parameter that engineers must consider to achieve optimal results in their projects. As technology advances and systems become more complex, the need for precise calculations of the effective sectional area will only grow, highlighting its relevance in modern engineering practices.

“有效截面面积”这一概念在工程和物理的多个领域中至关重要。它指的是有效贡献于特定数量流动或传输的面积，例如流体流动、热传递或电磁场。理解这一概念有助于工程师设计出更高效的系统，无论是专注于空气动力学、水动力学还是电路。例如，在设计用于输送水的管道系统时，管道的有效截面面积会显著影响流量和压降。如果面积过小，可能导致阻力增加和效率降低。因此，计算有效截面面积使工程师能够优化管道的尺寸，以确保水流的顺畅和高效。在另一个例子中，考虑空气动力学领域，其中有效截面面积在确定作用于飞机的阻力方面发挥着至关重要的作用。飞机的形状和方向会影响其有效截面面积，进而影响其性能和燃油效率。工程师使用风洞测试来测量阻力并计算有效截面面积，以做出明智的设计选择，从而增强飞机的空气动力学特性。此外，有效截面面积在电气工程中也具有重要意义。在设计电路时，导体的有效截面面积会影响其电阻和整体性能。较大的有效截面面积可以降低电阻，从而改善电流流动并最小化能量损失。这在高功率应用中尤其重要，因为效率至关重要。总之，有效截面面积是影响各个工程学科的基本概念。通过理解如何计算和优化这一面积，工程师可以提高他们设计的性能和效率。无论是在流体动力学、空气动力学还是电气系统中，有效截面面积的重要性都不容忽视。它作为一个关键参数，工程师必须考虑，以在他们的项目中实现最佳结果。随着技术的进步和系统变得更加复杂，对有效截面面积精确计算的需求只会增加，突显了它在现代工程实践中的相关性。