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Volume 13
Issue 4
10.3390/pr13041238
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Article

Numerical Simulation of the Interfacial Dynamics of Highly Viscous Fluid on a Single Packing Element by the Volume-of-Fluid Method

by
Xin Liu
,
Junhao Wang
* and
Zhengming Gao
*
State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
*
Authors to whom correspondence should be addressed.
Processes 2025, 13(4), 1238; https://doi.org/10.3390/pr13041238
Submission received: 17 March 2025 / Revised: 14 April 2025 / Accepted: 17 April 2025 / Published: 19 April 2025
(This article belongs to the Special Issue Applications of Computational Fluid Dynamics (CFD) in Chemical Process Simulations)
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Abstract

The dynamic characteristics of liquid with high viscosity impact on stagnant packing are investigated by a computational fluid dynamics (CFD) method. The three-dimensional model, employing the volume-of-fluid (VOF) approach, simulates the evolution of liquid profiles and describes four interaction stages—approaching, encapsulation, uncovering, and detachment—between the liquid and the packings, including Raschig rings, Pall rings, and Cascade mini rings. Based on the analysis of liquid dynamic behavior, the effects of packing type, packing size, and liquid viscosity on the liquid holding volume, film area, and surface renewal rate of highly viscous fluid in packing are analyzed. Furthermore, a correlation is developed to predict the specific area of liquid in terms of dimensionless numbers. This work provides a fundamental reference for realizing the interfacial characteristics in packed columns involving highly viscous fluids.
Keywords: highly viscous fluid; interface area; packing; CFD; VOF highly viscous fluid; interface area; packing; CFD; VOF

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MDPI and ACS Style

Liu, X.; Wang, J.; Gao, Z. Numerical Simulation of the Interfacial Dynamics of Highly Viscous Fluid on a Single Packing Element by the Volume-of-Fluid Method. Processes 2025, 13, 1238. https://doi.org/10.3390/pr13041238

AMA Style

Liu X, Wang J, Gao Z. Numerical Simulation of the Interfacial Dynamics of Highly Viscous Fluid on a Single Packing Element by the Volume-of-Fluid Method. Processes. 2025; 13(4):1238. https://doi.org/10.3390/pr13041238

Chicago/Turabian Style

Liu, Xin, Junhao Wang, and Zhengming Gao. 2025. "Numerical Simulation of the Interfacial Dynamics of Highly Viscous Fluid on a Single Packing Element by the Volume-of-Fluid Method" Processes 13, no. 4: 1238. https://doi.org/10.3390/pr13041238

APA Style

Liu, X., Wang, J., & Gao, Z. (2025). Numerical Simulation of the Interfacial Dynamics of Highly Viscous Fluid on a Single Packing Element by the Volume-of-Fluid Method. Processes, 13(4), 1238. https://doi.org/10.3390/pr13041238

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