Forces and torques on a sphere moving near a dihedral corner in creeping flow.
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| Title: | Forces and torques on a sphere moving near a dihedral corner in creeping flow. |
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| Authors: | Romanò, F.1,2 (AUTHOR) francesco.romano@ensam.eu, des Boscs, P.-E.3 (AUTHOR), Kuhlmann, H.C.3 (AUTHOR) |
| Source: | European Journal of Mechanics B: Fluids. Nov2020, Vol. 84, p110-121. 12p. |
| Subjects: | Stokes flow, Particle motion, Spheres, Superposition principle (Physics), Spectral element method, Fluid flow |
| Abstract: | The low-Reynolds-number flow past a sphere moving near a right dihedral corner made by a stationary and a tangentially sliding wall is considered. Using the superposition principle, the arbitrary motion of the sphere is decomposed into simple elementary motions. Fully-resolved spectral-element simulations are carried out in the frame of reference translating and rotating with the particle such that the velocity on the particle's surface vanishes. Forces and torques on the sphere are obtained as functions of the particle position near the corner. The data obtained are fitted by closed-form expressions which take into account symmetries of the problem, exact solutions, and asymptotic solutions from lubrication theory. The correlations obtained can easily be implemented in larger-scale one-way-coupled particulate-flow simulations to correct the particle motion near dihedral corners where mere point-particle models break down. [ABSTRACT FROM AUTHOR] |
| Copyright of European Journal of Mechanics B: Fluids is the property of Elsevier B.V. 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 |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 145696823 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.euromechflu.2020.04.010 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 110 Subjects: – SubjectFull: Stokes flow Type: general – SubjectFull: Particle motion Type: general – SubjectFull: Spheres Type: general – SubjectFull: Superposition principle (Physics) Type: general – SubjectFull: Spectral element method Type: general – SubjectFull: Fluid flow Type: general Titles: – TitleFull: Forces and torques on a sphere moving near a dihedral corner in creeping flow. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Romanò, F. – PersonEntity: Name: NameFull: des Boscs, P.-E. – PersonEntity: Name: NameFull: Kuhlmann, H.C. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 11 Text: Nov2020 Type: published Y: 2020 Identifiers: – Type: issn-print Value: 09977546 Numbering: – Type: volume Value: 84 Titles: – TitleFull: European Journal of Mechanics B: Fluids Type: main |
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