Numerical Study on an Interface Compression Method for the Volume of Fluid Approach

Material type: 文書・図像類

Author: Okagaki, Yuriaほか

Publisher: MDPI

Publication date: 2021-02-10

Material Format: Digital

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Note (General)：: Many thermohydraulic issues about the safety of light water reactors are related to complicated two-phase flow phenomena. In these phenomena, computat...

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Material Type: 文書・図像類
Title: Numerical Study on an Interface Compression Method for the Volume of Fluid Approach
Author/Editor: Okagaki, Yuria
Yonomoto, Taisuke
Ishigaki, Masahiro
Hirose, Yoshiyasu
Author Heading: Okagaki, Yuria
Yonomoto, Taisuke
Ishigaki, Masahiro
Hirose, Yoshiyasu
Publication, Distribution, etc.: MDPI
Publication Date: 2021-02-10
Publication Date (W3CDTF): 2021-02-10
Alternative Title: Numerical Study on an Interface Compression Method for the Volume of Fluid Approach
Periodical title: fluids
No. or year of volume/issue: 2021 6(2)80
Volume: 2021
Issue: 6(2)80
Pages: 1-17
ISSN (Periodical Title): ISSN : 2311-5521
Text Language Code: eng
Subject Heading: computational fluid dynamics (CFD)
two-phase flow
volume of fluid (VOF) method
validation
Target Audience: 一般
Note (General): Many thermohydraulic issues about the safety of light water reactors are related to complicated two-phase flow phenomena. In these phenomena, computational fluid dynamics (CFD) analysis using the volume of fluid (VOF) method causes numerical diffusion generated by the first-order upwind scheme used in the convection term of the volume fraction equation. Thus, in this study, we focused on an interface compression (IC) method for such a VOF approach; this technique prevents numerical diffusion issues and maintains boundedness and conservation with negative diffusion.First, on a sufficiently high mesh resolution and without the IC method, the validation process was considered by comparing the amplitude growth of the interfacial wave between a two-dimensional gas sheet and a quiescent liquid using the linear theory. The disturbance growth rates were consistent with the linear theory, and the validation process was considered appropriate. Then, this validation process confirmed the effects of the IC method on numerical diffusion, and we derived the optimum value of the IC coefficient, which is the parameter that controls the numerical diffusion.
source:https://www.mdpi.com/2311-5521/6/2/80
Source: https://u-fukui.repo.nii.ac.jp/?action=repository_action_common_download&item_id=29358&item_no=1&attribute_id=22&file_no=1
https://u-fukui.repo.nii.ac.jp/?action=repository_action_common_download&item_id=29358&item_no=1&attribute_id=22&file_no=1
Access Restrictions: 限定公開
Rights (production): cc-by 4.0
CC BY
Related Material (DOI): 10.3390/fluids6020080
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 福井大学 : 福井大学学術機関リポジトリ