Lattice Boltzmann Method for Two-phase Flows with High Density Ratio and Reynolds Number

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Lattice Boltzmann Method for Two-phase Flows with High Density Ratio and Reynolds Number

Persistent ID (NDL): info:ndljp/pid/12910757

Material type: 博士論文

Author: SITOMPUL, YOS Pほか

Publisher: -

Publication date: 2021-03

Material Format: Digital

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Name of awarding university/degree: 東京工業大学,博士（工学）

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Note (General)：: The Lattice Boltzmann Method (LBM) has become a popular alternative for fluid flow simulations. However, the conventional LBM is unstable when simulat...

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Material Type: 博士論文
Title: Lattice Boltzmann Method for Two-phase Flows with High Density Ratio and Reynolds Number
Author/Editor: SITOMPUL, YOS P
Sitompul, Yos
Author Heading: SITOMPUL, YOS P
Sitompul, Yos
Publication Date: 2021-03
Publication Date (W3CDTF): 2021-03
Degree grantor/type: 東京工業大学
Date Granted: 2021-03-26
Date Granted (W3CDTF): 2021-03-26
Dissertation Number: 甲第11912号
Degree Type: 博士（工学）
Text Language Code: eng
Target Audience: 一般
Note (General): The Lattice Boltzmann Method (LBM) has become a popular alternative for fluid flow simulations. However, the conventional LBM is unstable when simulating two-phase flows with a high-density ratio and Reynolds number. Two types of such problems studied in this thesis are violent two-phase flows and turbulent bubbly flows. A novel cumulant LBM is developed to simulate those problems stably. The proposed method employs a combination of a velocity-based formulation of the two-phase LBM with a cumulant collision model for hydrodynamics and a conservative phase-field lattice Boltzmann method for the interface capturing. The proposed method has been validated for both violent two-phase flows and turbulent bubbly flows. Additionally, we also studied foam formation simulations with thin liquid films. Our proposed method can simulate all the above complex problems stably, which opens possibilities for future applications.
identifier:oai:t2r2.star.titech.ac.jp:50565593
Persistent ID (NDL): info:ndljp/pid/12910757
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Acquisition Basis: 博士論文（自動収集）
Date Accepted (W3CDTF): 2023-07-08T03:42:28+09:00
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Periodical Title (URI): http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100844120
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