Modeling Gas Flows in Packed Beds with the Lattice Boltzmann Method: Validation Against Experiments

IF 2 3区工程技术 Q3 MECHANICS

Flow, Turbulence and Combustion Pub Date : 2023-07-13 DOI:10.1007/s10494-023-00444-z

Tanya Neeraj, Christin Velten, Gabor Janiga, Katharina Zähringer, Reza Namdar, Fathollah Varnik, Dominique Thévenin, Seyed Ali Hosseini

{"title":"Modeling Gas Flows in Packed Beds with the Lattice Boltzmann Method: Validation Against Experiments","authors":"Tanya Neeraj, Christin Velten, Gabor Janiga, Katharina Zähringer, Reza Namdar, Fathollah Varnik, Dominique Thévenin, Seyed Ali Hosseini","doi":"10.1007/s10494-023-00444-z","DOIUrl":null,"url":null,"abstract":"<div><p>This study aims to validate the lattice Boltzmann method and assess its ability to accurately describe the behavior of gaseous flows in packed beds. To that end, simulations of a model packed bed reactor, corresponding to an experimental bench, are conducted, and the results are directly compared with experimental data obtained by particle image velocimetry measurements. It is found that the lattice Boltzmann solver exhibits very good agreement with experimental measurements. Then, the numerical solver is further used to analyze the effect of the number of packing layers on the flow structure and to determine the minimum bed height above which the changes in flow structure become insignificant. Finally, flow fluctuations in time are discussed. The findings of this study provide valuable insights into the behavior of the gas flow in packed bed reactors, opening the door for further investigations involving additionally chemical reactions, as found in many practical applications.</p></div>","PeriodicalId":559,"journal":{"name":"Flow, Turbulence and Combustion","volume":"111 2","pages":"463 - 491"},"PeriodicalIF":2.0000,"publicationDate":"2023-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10494-023-00444-z.pdf","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Flow, Turbulence and Combustion","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10494-023-00444-z","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MECHANICS","Score":null,"Total":0}

引用次数: 2

Abstract

This study aims to validate the lattice Boltzmann method and assess its ability to accurately describe the behavior of gaseous flows in packed beds. To that end, simulations of a model packed bed reactor, corresponding to an experimental bench, are conducted, and the results are directly compared with experimental data obtained by particle image velocimetry measurements. It is found that the lattice Boltzmann solver exhibits very good agreement with experimental measurements. Then, the numerical solver is further used to analyze the effect of the number of packing layers on the flow structure and to determine the minimum bed height above which the changes in flow structure become insignificant. Finally, flow fluctuations in time are discussed. The findings of this study provide valuable insights into the behavior of the gas flow in packed bed reactors, opening the door for further investigations involving additionally chemical reactions, as found in many practical applications.

Abstract Image

查看原文本刊更多论文

用晶格玻尔兹曼方法模拟充填床中的气体流动:实验验证

本研究旨在验证晶格玻尔兹曼方法，并评估其准确描述充填床中气体流动行为的能力。为此，对与实验台架相对应的模型填料床反应器进行了仿真，并将仿真结果与粒子图像测速实验数据进行了直接比较。结果表明，晶格玻尔兹曼解算器与实验测量值具有很好的一致性。在此基础上，利用数值求解方法分析了填料层数对流动结构的影响，确定了填料层数大于填料层数时流动结构变化不显著的最小层高。最后讨论了流量随时间的波动。这项研究的发现为填充床反应器中气体流动的行为提供了有价值的见解，为在许多实际应用中发现的涉及其他化学反应的进一步研究打开了大门。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Flow, Turbulence and Combustion 工程技术-力学

CiteScore

5.70

自引率

8.30%

发文量

审稿时长

2 months

期刊介绍： Flow, Turbulence and Combustion provides a global forum for the publication of original and innovative research results that contribute to the solution of fundamental and applied problems encountered in single-phase, multi-phase and reacting flows, in both idealized and real systems. The scope of coverage encompasses topics in fluid dynamics, scalar transport, multi-physics interactions and flow control. From time to time the journal publishes Special or Theme Issues featuring invited articles. Contributions may report research that falls within the broad spectrum of analytical, computational and experimental methods. This includes research conducted in academia, industry and a variety of environmental and geophysical sectors. Turbulence, transition and associated phenomena are expected to play a significant role in the majority of studies reported, although non-turbulent flows, typical of those in micro-devices, would be regarded as falling within the scope covered. The emphasis is on originality, timeliness, quality and thematic fit, as exemplified by the title of the journal and the qualifications described above. Relevance to real-world problems and industrial applications are regarded as strengths.