Friction Factor Distribution at the Side Wall of a Turbulent Agitated Vessel with Baffles Using a MAXBLEND Impeller,Industrial & Engineering Chemistry Research

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Friction Factor Distribution at the Side Wall of a Turbulent Agitated Vessel with Baffles Using a MAXBLEND Impeller
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2022-01-14 , DOI: 10.1021/acs.iecr.1c04229
Yusuke Ochi ₁ , Katsuhide Takenaka ₂ , Yoshiyuki Komoda ₁ , Naoto Ohmura ₁

Affiliation

In analogy to momentum, heat, and mass transfer, the friction factor at the sidewall plays a crucial role in transport phenomena in chemical processes using agitated vessels. The present work numerically investigated the distribution of the friction factor in a turbulent agitated vessel with the aid of a computational fluid dynamics simulation. The numerically obtained velocity distribution for a paddle impeller showed a good agreement with experimental and theoretical values, which indicated that the numerical procedure was reliable. A circulation flow induced by a MAXBLEND impeller was deformed by adding baffle clearance, and a more complex flow pattern was observed. The friction factor in the baffled vessel using the MAXBLEND impeller had large-scale fluctuations upon installing baffle clearance, which may show the enhancement of heat/mass transfer at the sidewall of the vessel.

中文翻译：

使用 MAXBLEND 叶轮的带有挡板的湍流搅拌容器侧壁的摩擦系数分布

类似于动量、热量和质量传递，侧壁的摩擦系数在使用搅拌容器的化学过程中的传输现象中起着至关重要的作用。本工作借助计算流体动力学模拟数值研究了湍流搅拌容器中摩擦系数的分布。数值得到的桨叶轮速度分布与实验值和理论值有很好的一致性，表明数值过程是可靠的。MAXBLEND 叶轮引起的循环流动通过增加挡板间隙进行变形，并观察到更复杂的流动模式。使用 MAXBLEND 叶轮的挡板容器中的摩擦系数在安装挡板间隙后出现大范围波动，

更新日期：2022-01-26

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