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Heat and Momentum Transfer Analogies in Laminar Flow

机译:层流中的热和动量传递类比

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In this paper, we briefly present the heat/momentum transfer analogies of Reynolds and the followers for turbulent flow. Next, we discuss differences between turbulent and laminar flow and turn to the Lévêque analogy for laminar flow. This enables heat transfer coefficients (Nusselt numbers) to be derived, based on the flow friction results that include only viscous friction. Some examples of Lévêque analogy applications, such as flow through packed beds, wire gauzes, short-channel structures (short monoliths), and structured catalyst carriers (tube inserts), are given. The Lévêque analogy gave satisfactory accuracy when compared to experiments with flow friction derived on the theoretical basis.
机译:在本文中,我们简要介绍了雷诺和湍流随动件的热/动量传递类比。接下来,我们讨论湍流和层流之间的差异,并转向层流的Lévêque类比。这样就可以基于仅包括粘性摩擦的流动摩擦结果来导出传热系数(努塞尔数)。给出了列维克类比应用的一些示例,例如流经填​​充床,金属丝网,短通道结构(短整料)和结构化催化剂载体(管插入物)。与基于理论推导的流动摩擦实验相比,Lévêque类比给出了令人满意的准确性。

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