resistance coefficient

简明释义

阻力系数

英英释义

例句

1.The resistance coefficient 阻力系数 can vary depending on the surface roughness of the material.

根据材料的表面粗糙度，阻力系数可能会有所不同。

2.The resistance coefficient 阻力系数 of a material can greatly affect its thermal performance.

材料的阻力系数可以极大地影响其热性能。

3.In fluid dynamics, the resistance coefficient 阻力系数 is crucial for predicting flow behavior.

在流体动力学中，阻力系数对于预测流动行为至关重要。

4.When designing a new vehicle, engineers must consider the resistance coefficient 阻力系数 to improve fuel efficiency.

在设计新车时，工程师必须考虑阻力系数以提高燃油效率。

5.The engineer calculated the resistance coefficient 阻力系数 to determine how much energy would be lost in the pipeline.

工程师计算了阻力系数以确定管道中会损失多少能量。

作文

The concept of the resistance coefficient is fundamental in various fields of science and engineering, particularly in fluid dynamics and material science. It provides a quantitative measure of how much a material or fluid resists motion when subjected to an external force. Understanding this coefficient is crucial for designing systems that involve fluid flow, such as pipelines, air conditioning systems, and even aerodynamics in vehicles.In fluid dynamics, the resistance coefficient can be defined as the ratio of the shear stress to the velocity gradient in a fluid. This means that if we know how fast a fluid is moving and the force acting against it, we can calculate the resistance coefficient. For example, in the case of water flowing through a pipe, the resistance coefficient helps engineers determine the pressure loss due to friction over a specific distance. This calculation is vital for ensuring that pumps are adequately sized and that energy is not wasted.Moreover, the resistance coefficient varies with different factors, including the roughness of the surface the fluid is flowing over, the viscosity of the fluid, and the flow regime (laminar or turbulent). In laminar flow, where the fluid moves in parallel layers, the resistance coefficient is relatively low, while in turbulent flow, where the fluid undergoes chaotic changes in pressure and velocity, the resistance coefficient can be significantly higher. Understanding these differences allows engineers to optimize designs for efficiency and performance.In material science, the resistance coefficient plays a critical role in determining how materials respond to external forces. For instance, when analyzing the mechanical properties of a material, the resistance coefficient can indicate how much force is required to deform or break the material. This information is essential for selecting materials for construction, manufacturing, and other applications where strength and durability are paramount.Furthermore, the resistance coefficient is not limited to physical sciences; it also finds applications in economics and social sciences. For example, in the context of market dynamics, the resistance coefficient could metaphorically represent how resistant a market is to changes in price or demand. Understanding this aspect can help businesses strategize their pricing models and predict consumer behavior more effectively.In summary, the resistance coefficient is a versatile and essential parameter across various disciplines. Its applications range from optimizing fluid flow in engineering systems to understanding material properties and even analyzing economic trends. By mastering the concept of the resistance coefficient, professionals can enhance their designs, improve efficiency, and make informed decisions in their respective fields. This understanding not only contributes to technological advancements but also fosters innovation in solving complex problems faced by society today.

‘阻力系数’的概念在科学和工程的各个领域中都是基础，特别是在流体动力学和材料科学中。它提供了一个定量的测量，表明当材料或流体受到外力作用时，它抵抗运动的程度。理解这个系数对于设计涉及流体流动的系统至关重要，例如管道、空调系统甚至车辆的空气动力学。在流体动力学中，‘阻力系数’可以定义为剪切应力与流体速度梯度的比率。这意味着如果我们知道流体的流动速度和作用在其上的力，我们就可以计算出‘阻力系数’。例如，在水流经管道的情况下，‘阻力系数’帮助工程师确定由于摩擦造成的压力损失。这个计算对于确保泵的适当尺寸以及避免能量浪费是至关重要的。此外，‘阻力系数’会因不同因素而异，包括流体流动所经过表面的粗糙度、流体的粘度以及流动状态（层流或湍流）。在层流中，流体以平行层的方式流动，‘阻力系数’相对较低，而在湍流中，流体经历压力和速度的混乱变化，‘阻力系数’可能会显著更高。理解这些差异使工程师能够优化设计，以提高效率和性能。在材料科学中，‘阻力系数’在确定材料如何响应外力方面起着关键作用。例如，在分析材料的机械性能时，‘阻力系数’可以指示变形或破坏材料所需的力。这些信息对于选择建筑、制造和其他应用中强度和耐久性至关重要。此外，‘阻力系数’不仅限于物理科学；它还在经济学和社会科学中找到应用。例如，在市场动态的背景下，‘阻力系数’可以比喻性地表示市场对价格或需求变化的抵抗程度。理解这一点可以帮助企业制定定价策略，更有效地预测消费者行为。总之，‘阻力系数’是各个学科中一种多功能且至关重要的参数。它的应用范围从优化工程系统中的流体流动到理解材料特性，甚至分析经济趋势。通过掌握‘阻力系数’的概念，专业人士可以增强他们的设计、改善效率，并在各自领域做出明智的决策。这种理解不仅有助于技术进步，还促进了解决当今社会面临的复杂问题的创新。