fourier number

简明释义

傅里叶数

英英释义

The Fourier number is a dimensionless number used in heat transfer and diffusion problems, defined as the ratio of thermal diffusion rate to the rate of thermal storage.

傅里叶数是一个无量纲数,用于热传导和扩散问题,定义为热扩散速率与热存储速率的比率。

例句

1.In fluid dynamics, the fourier number 傅里叶数 can be used to analyze the diffusion of heat in moving fluids.

在流体动力学中,fourier number 傅里叶数可用于分析移动流体中的热扩散。

2.The fourier number 傅里叶数 helps in determining the effectiveness of insulation materials in thermal applications.

在热应用中,fourier number 傅里叶数有助于确定绝缘材料的有效性。

3.When modeling the cooling process of a metal rod, engineers often calculate the fourier number 傅里叶数 to predict temperature changes over time.

在对金属棒的冷却过程建模时,工程师通常计算fourier number 傅里叶数以预测温度随时间的变化。

4.In heat transfer analysis, the dimensionless parameter known as the fourier number 傅里叶数 is crucial for characterizing transient conduction.

在热传导分析中,称为fourier number 傅里叶数的无量纲参数对于表征瞬态导热至关重要。

5.To optimize the heating process in industrial ovens, manufacturers need to monitor the fourier number 傅里叶数 closely.

为了优化工业烤箱中的加热过程,制造商需要密切监测fourier number 傅里叶数

作文

The concept of the fourier number plays a crucial role in the field of heat transfer and diffusion processes. It is a dimensionless quantity that characterizes the relative rates of heat conduction and thermal energy storage in a material. The fourier number is defined as the ratio of the thermal diffusivity of a material to the characteristic time scale of a thermal process. This number helps engineers and scientists understand how quickly heat can be transferred within a material and how long it will take for a temperature change to occur throughout that material.In practical applications, the fourier number is used extensively in various industries, including manufacturing, aerospace, and environmental engineering. For instance, when designing thermal insulation for buildings or spacecraft, engineers must consider the fourier number to ensure that the materials used will effectively manage heat flow. A high fourier number indicates that heat will diffuse quickly, which might be desirable in certain applications where rapid temperature changes are required. Conversely, a low fourier number suggests that heat transfer is slow, which may be beneficial for insulation purposes.Understanding the fourier number also aids in predicting the behavior of materials under varying thermal conditions. For example, during the cooling process of a hot object, the fourier number can help determine how long it will take for the object's surface to reach a specific temperature. This information is vital for processes such as metal casting, where controlling the cooling rate is essential to achieve desired material properties.Moreover, the fourier number is not limited to solid materials; it can also apply to fluids. In fluid dynamics, the fourier number can be used to analyze heat transfer in moving fluids, which is critical in designing heat exchangers and other thermal systems. By understanding the flow patterns and the associated fourier number, engineers can optimize designs for better efficiency and performance.In summary, the fourier number is a fundamental parameter in thermal analysis that provides insights into heat transfer processes. Its importance spans multiple fields, from materials science to mechanical engineering. By mastering the concept of the fourier number, professionals can make informed decisions regarding material selection, process design, and system optimization. This knowledge ultimately leads to advancements in technology and improvements in energy efficiency, contributing to a more sustainable future.In conclusion, the fourier number serves as a bridge between theoretical concepts and practical applications in the realm of heat transfer. Its utility in predicting thermal behavior and optimizing material performance underscores its significance in engineering and scientific research. As we continue to explore new materials and technologies, the fourier number will remain an essential tool in our quest for innovation and efficiency.

fourier number”的概念在热传递和扩散过程领域中起着至关重要的作用。它是一个无量纲量,表征材料中热导率和热能储存的相对速率。fourier number定义为材料的热扩散率与热过程特征时间尺度的比率。这个数字帮助工程师和科学家理解热量在材料内部转移的速度,以及材料中温度变化需要多长时间才能发生。在实际应用中,fourier number在制造、航空航天和环境工程等多个行业中被广泛使用。例如,在设计建筑或航天器的保温材料时,工程师必须考虑fourier number,以确保所用材料能够有效管理热流。高fourier number表示热量会迅速扩散,这在某些需要快速温度变化的应用中可能是理想的。相反,低fourier number则表明热传递缓慢,这对于保温目的可能是有益的。理解fourier number还有助于预测材料在不同热条件下的行为。例如,在一个热物体的冷却过程中,fourier number可以帮助确定物体表面达到特定温度所需的时间。这些信息对于金属铸造等过程至关重要,因为控制冷却速率对于实现所需的材料性能至关重要。此外,fourier number不仅限于固体材料;它也适用于流体。在流体动力学中,fourier number可用于分析流动流体中的热传递,这在设计热交换器和其他热系统时至关重要。通过理解流动模式和相关的fourier number,工程师可以优化设计,以提高效率和性能。总之,fourier number是热分析中的一个基本参数,为热传递过程提供了见解。它的重要性跨越多个领域,从材料科学到机械工程。通过掌握fourier number的概念,专业人员可以就材料选择、过程设计和系统优化做出明智的决策。这种知识最终导致技术的进步和能源效率的改善,为更可持续的未来做出贡献。最后,fourier number在热传递领域的理论概念与实际应用之间架起了一座桥梁。它在预测热行为和优化材料性能方面的实用性凸显了其在工程和科学研究中的重要性。随着我们继续探索新材料和技术,fourier number将始终是我们追求创新和效率的重要工具。