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首页> 外文会议>Proceedings vol.2004-17; Electrochemical Society(ECS) Meeting and Symposium on Electrochemical Process in ULSI and MEMS; 2004 Spring; San Antonio,TX(US) >UNSTEADY NUMERICAL SIMULATION OF THE MASS TRANSFER WITHIN A RECIPROCATING PADDLE ELECTROPLATING CELL
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UNSTEADY NUMERICAL SIMULATION OF THE MASS TRANSFER WITHIN A RECIPROCATING PADDLE ELECTROPLATING CELL

机译：往复式电泳池内传质的非恒定数值模拟。

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摘要

Mass-transfer properties of a continuously reciprocating paddle reactor are investigated using computational fluid dynamic (CFD) simulations. The flow induced by the paddle motion is modeled with a moving mesh assuming laminar flow. Spatial and temporal mass-transfer data are gathered over many paddle cycles under diffusion-limited conditions. Transient, numerical simulations of this type are computationally expensive, but can add insight into flow phenomena that are difficult to observe experimentally. It is shown that a major source of the agitation in a paddle cell is vortices shed from the paddle. This results in a mass-transfer limit that is periodic in nature and that may exhibit spatial variations related to the paddle wake. A simulation-based, mass-transfer correlation is presented that relates various design and operating parameters within a generic paddle reactor. The mass-transfer trends predicted by the numerical simulations are qualitatively compared with experimental mass-transfer correlations found in the literature.
机译：使用计算流体动力学（CFD）模拟研究了连续往复桨式反应器的传质特性。假设层流，通过运动的网格对桨运动引起的流量进行建模。在扩散受限的条件下，通过多个桨循环收集空间和时间的传质数据。这种类型的瞬态数值计算在计算上很昂贵，但可以增加对难以通过实验观察到的流动现象的了解。结果表明，桨叶池中主要的搅动源是桨叶产生的涡流。这导致传质极限本质上是周期性的，并且可能表现出与桨叶尾流有关的空间变化。提出了基于模拟的传质相关性，该相关性关联了通用桨式反应器内的各种设计和运行参数。通过数值模拟预测的传质趋势与文献中发现的实验传质相关性进行了定性比较。

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