sherwood number

简明释义

舍伍德数

英英释义

例句

1.The calculation of the Sherwood number is essential for designing efficient mass transfer equipment.

计算Sherwood number对于设计高效的传质设备至关重要。

2.Our simulation results showed a higher Sherwood number at increased turbulence levels.

我们的模拟结果显示，在增加湍流水平时，Sherwood number更高。

3.The Sherwood number is used to characterize the mass transfer in a variety of chemical processes.

Sherwood number用于表征各种化学过程中的质量传递。

4.To optimize the heat exchanger, we need to analyze the Sherwood number under various flow conditions.

为了优化热交换器，我们需要分析在各种流动条件下的Sherwood number。

5.In our research, we found that the Sherwood number can significantly influence the rate of absorption in gas-liquid systems.

在我们的研究中，我们发现Sherwood number可以显著影响气-液系统中的吸收速率。

作文

The concept of the Sherwood number is fundamental in the field of mass transfer and fluid dynamics. It is a dimensionless number that characterizes the ratio of convective mass transfer to diffusive mass transfer. Understanding the Sherwood number is crucial for engineers and scientists who are involved in processes such as chemical reactions, heat exchangers, and various applications in environmental engineering.To better grasp the importance of the Sherwood number, let us consider an example involving the mixing of two different fluids. When a solute is introduced into a solvent, it does not instantly disperse throughout the entire volume of the solvent. Instead, the solute molecules will first spread out due to diffusion, which is a process driven by concentration gradients. However, the presence of flow can significantly enhance this mixing process. The Sherwood number quantifies this enhancement by comparing the rate of mass transfer due to convection (the movement of the fluid itself) to the rate of mass transfer due to diffusion.Mathematically, the Sherwood number can be expressed as:Sherwood number (Sh) = (kL * L) / Dwhere kL is the mass transfer coefficient, L is a characteristic length (such as the diameter of a pipe), and D is the diffusion coefficient. A high Sherwood number indicates that convection is dominant, meaning that the fluid flow is effectively enhancing the mixing of the solute. Conversely, a low Sherwood number suggests that diffusion is the primary mechanism at play.In practical applications, the Sherwood number is used to design equipment such as reactors and separation columns. For instance, in a chemical reactor, engineers must ensure that the reactants are mixed adequately to achieve optimal reaction rates. By calculating the Sherwood number, they can predict how well the reactants will mix under specific flow conditions and adjust the design accordingly.Furthermore, the Sherwood number is also essential in environmental engineering when analyzing the dispersion of pollutants in water bodies. Understanding how quickly pollutants diffuse versus how quickly they are carried away by currents can help in assessing the impact of industrial discharges on aquatic ecosystems.In summary, the Sherwood number is a critical parameter in mass transfer analysis, providing insights into the efficiency of mixing processes in various engineering applications. As we continue to explore complex fluid systems, the significance of the Sherwood number will only grow, underscoring its role in advancing our understanding of fluid dynamics and mass transfer phenomena. By mastering the concept of the Sherwood number, professionals in the field can improve designs and processes that rely on effective mass transport, thereby enhancing performance and sustainability in numerous industries.

在质量传递和流体动力学领域，Sherwood number 的概念至关重要。它是一个无量纲数，表征对流质量传递与扩散质量传递的比率。理解 Sherwood number 对于参与化学反应、热交换器以及环境工程各种应用的工程师和科学家来说至关重要。为了更好地理解 Sherwood number 的重要性，让我们考虑一个涉及两种不同流体混合的例子。当溶质被引入溶剂中时，它不会立即在整个溶剂体积中分散。相反，溶质分子首先会因扩散而扩散，这一过程是由浓度梯度驱动的。然而，流动的存在可以显著增强这一混合过程。Sherwood number 通过比较由于对流（流体本身的运动）导致的质量传递速率与由于扩散导致的质量传递速率来量化这种增强。从数学上讲，Sherwood number 可以表示为：Sherwood number (Sh) = (kL * L) / D其中 kL 是质量传递系数，L 是特征长度（如管道直径），D 是扩散系数。高 Sherwood number 表示对流占主导地位，这意味着流体流动有效地增强了溶质的混合。相反，低 Sherwood number 则表明扩散是主要机制。在实际应用中，Sherwood number 被用于设计反应器和分离柱等设备。例如，在化学反应器中，工程师必须确保反应物充分混合，以实现最佳反应速率。通过计算 Sherwood number，他们可以预测在特定流动条件下反应物将如何混合，并据此调整设计。此外，在分析水体中污染物的扩散时，Sherwood number 在环境工程中也至关重要。理解污染物扩散的速度与水流带走的速度，可以帮助评估工业排放对水生生态系统的影响。总之，Sherwood number 是质量传递分析中的关键参数，为各种工程应用中的混合过程效率提供了洞察。随着我们继续探索复杂的流体系统，Sherwood number 的重要性将会不断增长，强调其在推进我们对流体动力学和质量传递现象理解中的作用。通过掌握 Sherwood number 的概念，相关领域的专业人士可以改善依赖有效质量传输的设计和过程，从而提升各个行业的性能和可持续性。