Study of effect of rotational axis configurations on the slosh dynamics of the ship-mounted tank under different combinations of rotational excitations.
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| Title: | Study of effect of rotational axis configurations on the slosh dynamics of the ship-mounted tank under different combinations of rotational excitations. |
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| Authors: | Muhammad Abdullah, Khawaja1 (AUTHOR) khabdullah005@gmail.com, Abdul Basit, Muhammad1 (AUTHOR), Shah, Ajmal2 (AUTHOR) |
| Source: | Journal of Marine Science & Technology. Jun2024, Vol. 29 Issue 2, p353-371. 19p. |
| Subjects: | Tankers, Air-water interfaces, Container ships, Fluid pressure, Free surfaces, Structural stability |
| Abstract: | In maritime transportation systems, the stability and structural integrity of ship-mounted tanks subjected to sloshing phenomenon are critical due to economic considerations and to ensure ecological safety. During the voyage, the ships are subjected to external excitations, which induce sloshing in fluid in partially filled tanks mounted on the ship's deck. This article investigates the effect of rotational axis configurations on the slosh dynamics of a 24,000 TEU water tank mounted on an Ever-Ace container ship. Sloshing phenomena caused by different combinations of piecewise sinusoidal rotational excitations have been compared. The fluid domain was simulated using ANSYS Fluent, coupled with transient structural analysis in ANSYS Mechanical, to analyze the structural integrity of the container. The fluid pressure loads were imported on the tank structure using a one-way FSI approach. The numerical results have been validated with the experimental data available in the literature. It has been found that the effects of viscous sub-layer are insignificant on the slosh dynamics of the tank. Moreover, the transient response of the air–water interface, impact pressure, and wall moment have been presented. Wave fluctuation is observed to be small when the axis of rotation is perpendicular to the free surface. Maximum impact pressure of 7 kPa has been observed for combination of roll and pitch motions. The range of amplitude of moment is maximum for combination of roll and pitch motions that varies from − 95.6 to 92.3 kN m. Furthermore, the frequency of the moment differed from the excitation frequency depending on the configuration of the rotational axis. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Marine Science & Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 177481883 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Study of effect of rotational axis configurations on the slosh dynamics of the ship-mounted tank under different combinations of rotational excitations. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Muhammad+Abdullah%2C+Khawaja%22">Muhammad Abdullah, Khawaja</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> khabdullah005@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Abdul+Basit%2C+Muhammad%22">Abdul Basit, Muhammad</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shah%2C+Ajmal%22">Shah, Ajmal</searchLink><relatesTo>2</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Marine+Science+%26+Technology%22">Journal of Marine Science & Technology</searchLink>. Jun2024, Vol. 29 Issue 2, p353-371. 19p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Tankers%22">Tankers</searchLink><br /><searchLink fieldCode="DE" term="%22Air-water+interfaces%22">Air-water interfaces</searchLink><br /><searchLink fieldCode="DE" term="%22Container+ships%22">Container ships</searchLink><br /><searchLink fieldCode="DE" term="%22Fluid+pressure%22">Fluid pressure</searchLink><br /><searchLink fieldCode="DE" term="%22Free+surfaces%22">Free surfaces</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+stability%22">Structural stability</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: In maritime transportation systems, the stability and structural integrity of ship-mounted tanks subjected to sloshing phenomenon are critical due to economic considerations and to ensure ecological safety. During the voyage, the ships are subjected to external excitations, which induce sloshing in fluid in partially filled tanks mounted on the ship's deck. This article investigates the effect of rotational axis configurations on the slosh dynamics of a 24,000 TEU water tank mounted on an Ever-Ace container ship. Sloshing phenomena caused by different combinations of piecewise sinusoidal rotational excitations have been compared. The fluid domain was simulated using ANSYS Fluent, coupled with transient structural analysis in ANSYS Mechanical, to analyze the structural integrity of the container. The fluid pressure loads were imported on the tank structure using a one-way FSI approach. The numerical results have been validated with the experimental data available in the literature. It has been found that the effects of viscous sub-layer are insignificant on the slosh dynamics of the tank. Moreover, the transient response of the air–water interface, impact pressure, and wall moment have been presented. Wave fluctuation is observed to be small when the axis of rotation is perpendicular to the free surface. Maximum impact pressure of 7 kPa has been observed for combination of roll and pitch motions. The range of amplitude of moment is maximum for combination of roll and pitch motions that varies from − 95.6 to 92.3 kN m. Furthermore, the frequency of the moment differed from the excitation frequency depending on the configuration of the rotational axis. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Marine Science & Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s00773-024-00990-9 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 19 StartPage: 353 Subjects: – SubjectFull: Tankers Type: general – SubjectFull: Air-water interfaces Type: general – SubjectFull: Container ships Type: general – SubjectFull: Fluid pressure Type: general – SubjectFull: Free surfaces Type: general – SubjectFull: Structural stability Type: general Titles: – TitleFull: Study of effect of rotational axis configurations on the slosh dynamics of the ship-mounted tank under different combinations of rotational excitations. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Muhammad Abdullah, Khawaja – PersonEntity: Name: NameFull: Abdul Basit, Muhammad – PersonEntity: Name: NameFull: Shah, Ajmal IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 09484280 Numbering: – Type: volume Value: 29 – Type: issue Value: 2 Titles: – TitleFull: Journal of Marine Science & Technology Type: main |
| ResultId | 1 |
