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1.4804186.pdf | 2 MB | Adobe PDF | 見る/開く |
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DCフィールド | 値 | 言語 |
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dc.contributor.author | Tatsumi, Rei | en |
dc.contributor.author | Yamamoto, Ryoichi | en |
dc.contributor.alternative | 辰巳, 怜 | ja |
dc.contributor.alternative | 山本, 量一 | ja |
dc.date.accessioned | 2013-07-09T09:10:11Z | - |
dc.date.available | 2013-07-09T09:10:11Z | - |
dc.date.issued | 2013-05-14 | - |
dc.identifier.issn | 0021-9606 | - |
dc.identifier.uri | http://hdl.handle.net/2433/175968 | - |
dc.description.abstract | The velocity relaxation of an impulsively forced spherical particle in a fluid confined by two parallel plane walls is studied using a direct numerical simulation approach. During the relaxation process, the momentum of the particle is transmitted in the ambient fluid by viscous diffusion and sound wave propagation, and the fluid flow accompanied by each mechanism has a different character and affects the particle motion differently. Because of the bounding walls, viscous diffusion is hampered, and the accompanying shear flow is gradually diminished. However, the sound wave is repeatedly reflected and spreads diffusely. As a result, the particle motion is governed by the sound wave and backtracks differently in a bulk fluid. The time when the backtracking of the particle occurs changes non-monotonically with respect to the compressibility factor ε = ν∕ac and is minimized at the characteristic compressibility factor. This factor depends on the wall spacing, and the dependence is different at small and large wall spacing regions based on the different mechanisms causing the backtracking. | en |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | American Institute of Physics | en |
dc.rights | © 2013 American Institute of Physics | en |
dc.subject | acoustic waves | en |
dc.subject | backtracking | en |
dc.subject | boundary layers | en |
dc.subject | compressible flow | en |
dc.subject | confined flow | en |
dc.subject | diffusion | en |
dc.subject | flow simulation | en |
dc.subject | numerical analysis | en |
dc.subject | shear flow | en |
dc.subject | two-phase flow | en |
dc.title | Velocity relaxation of a particle in a confined compressible fluid | en |
dc.type | journal article | - |
dc.type.niitype | Journal Article | - |
dc.identifier.ncid | AA00694991 | - |
dc.identifier.jtitle | The Journal of chemical physics | en |
dc.identifier.volume | 138 | - |
dc.identifier.issue | 18 | - |
dc.relation.doi | 10.1063/1.4804186 | - |
dc.textversion | publisher | - |
dc.identifier.artnum | 184905 | - |
dc.identifier.pmid | 23676072 | - |
dcterms.accessRights | open access | - |
出現コレクション: | 学術雑誌掲載論文等 |
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