Evaluation of damping effect of perforated plate on the first resonant wave height of liquid sloshing under pitching excitation utilized by CFD
As a method for mining offshore gas fields, a floating production, storage and offloading (FPSO) system is attracting attention. However, sloshing in the oil-gas separator installed in FPSOs excited by sea waves is expected to cause significant difficulties. To suppress sloshing wave heights, one po...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | Japanese |
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The Japan Society of Mechanical Engineers
2018-02-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/84/861/84_17-00507/_pdf/-char/en |
| _version_ | 1797989143759814656 |
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| author | Yuto ARAKI Akane UEMICHI Yudai YAMASAKI Shigehiko KANEKO |
| author_facet | Yuto ARAKI Akane UEMICHI Yudai YAMASAKI Shigehiko KANEKO |
| author_sort | Yuto ARAKI |
| collection | DOAJ |
| description | As a method for mining offshore gas fields, a floating production, storage and offloading (FPSO) system is attracting attention. However, sloshing in the oil-gas separator installed in FPSOs excited by sea waves is expected to cause significant difficulties. To suppress sloshing wave heights, one possibility may be to install perforated plates in a tank. In this study, a method is proposed for the accurate estimation of the first resonant wave height in the horizontal cylindrical tank with a perforated plate under pitching excitation in less time. To accomplish this purpose, the pressure loss due to the perforated plate in the open channel must be estimated accurately. Therefore, the pressure loss is modeled using steady CFD calculations considering the effects of the distribution of the flow velocity and the distribution of the inflow angle. The first order sloshing wave height is calculated in the theoretical analysis by substituting the pressure loss calculated in steady CFD. The wave heights determined using the pressure loss utilized by steady CFD are compared with the experimental value measured with a small-scale model. Using the method proposed in this study, the first resonant wave height of sloshing wave height is calculated accurately in less time. |
| first_indexed | 2024-04-11T08:15:30Z |
| format | Article |
| id | doaj.art-0b627302c1aa45f9a67c697766f469c2 |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-11T08:15:30Z |
| publishDate | 2018-02-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-0b627302c1aa45f9a67c697766f469c22022-12-22T04:35:11ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612018-02-018486117-0050717-0050710.1299/transjsme.17-00507transjsmeEvaluation of damping effect of perforated plate on the first resonant wave height of liquid sloshing under pitching excitation utilized by CFDYuto ARAKI0Akane UEMICHI1Yudai YAMASAKI2Shigehiko KANEKO3Department of Mechanical Engineering, University of TokyoDepartment of Mechanical Engineering, University of TokyoDepartment of Mechanical Engineering, University of TokyoDepartment of Mechanical Engineering, University of TokyoAs a method for mining offshore gas fields, a floating production, storage and offloading (FPSO) system is attracting attention. However, sloshing in the oil-gas separator installed in FPSOs excited by sea waves is expected to cause significant difficulties. To suppress sloshing wave heights, one possibility may be to install perforated plates in a tank. In this study, a method is proposed for the accurate estimation of the first resonant wave height in the horizontal cylindrical tank with a perforated plate under pitching excitation in less time. To accomplish this purpose, the pressure loss due to the perforated plate in the open channel must be estimated accurately. Therefore, the pressure loss is modeled using steady CFD calculations considering the effects of the distribution of the flow velocity and the distribution of the inflow angle. The first order sloshing wave height is calculated in the theoretical analysis by substituting the pressure loss calculated in steady CFD. The wave heights determined using the pressure loss utilized by steady CFD are compared with the experimental value measured with a small-scale model. Using the method proposed in this study, the first resonant wave height of sloshing wave height is calculated accurately in less time.https://www.jstage.jst.go.jp/article/transjsme/84/861/84_17-00507/_pdf/-char/ensloshingnon-linear dampingperforated platecfdpressure losscyrindrical tank |
| spellingShingle | Yuto ARAKI Akane UEMICHI Yudai YAMASAKI Shigehiko KANEKO Evaluation of damping effect of perforated plate on the first resonant wave height of liquid sloshing under pitching excitation utilized by CFD Nihon Kikai Gakkai ronbunshu sloshing non-linear damping perforated plate cfd pressure loss cyrindrical tank |
| title | Evaluation of damping effect of perforated plate on the first resonant wave height of liquid sloshing under pitching excitation utilized by CFD |
| title_full | Evaluation of damping effect of perforated plate on the first resonant wave height of liquid sloshing under pitching excitation utilized by CFD |
| title_fullStr | Evaluation of damping effect of perforated plate on the first resonant wave height of liquid sloshing under pitching excitation utilized by CFD |
| title_full_unstemmed | Evaluation of damping effect of perforated plate on the first resonant wave height of liquid sloshing under pitching excitation utilized by CFD |
| title_short | Evaluation of damping effect of perforated plate on the first resonant wave height of liquid sloshing under pitching excitation utilized by CFD |
| title_sort | evaluation of damping effect of perforated plate on the first resonant wave height of liquid sloshing under pitching excitation utilized by cfd |
| topic | sloshing non-linear damping perforated plate cfd pressure loss cyrindrical tank |
| url | https://www.jstage.jst.go.jp/article/transjsme/84/861/84_17-00507/_pdf/-char/en |
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