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Mean Wind in Convective Turbulence of Mercury
http://hdl.handle.net/2237/7152
4464560b-ab83-4df4-8a06-0f6f5fdb4744
名前 / ファイル | ライセンス | アクション | |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2006-11-30 | |||||
タイトル | ||||||
タイトル | Mean Wind in Convective Turbulence of Mercury | |||||
著者 |
Tsuji, Yoshiyuki
× Tsuji, Yoshiyuki× Mizuno, Takatoshi× Mashiko, Takashi× Sano, Masaki |
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権利 | ||||||
権利情報 | Copyright: American Physical Society, All rights reserved. | |||||
抄録 | ||||||
内容記述 | The large-scale circulation, often called ‘‘wind,’’ in the confined thermal turbulence of mercury is studied experimentally. The instantaneous velocity profile at 128 points is directly measured using ultrasonic velocimetry. The periodic velocity oscillation is observed in the case of the aspect-ratio Γ=1,2 but not in Γ=0.5. Its peak frequency is scaled by f_c∝Ra^γc , where Ra is the Rayleigh number and γ_c=0.43,0.45 forΓ=1,2.f_c is close to the wind circulation frequency f_p, and has the same order of transit time from the bottom to the top of the convection cell. A single roll circulation is expected in Γ=1; however, axisymmetric toroidal rings may exist near the upper and lower plate for Γ=0.5, which are stable up to Ra=7×10^10. | |||||
内容記述タイプ | Abstract | |||||
内容記述 | ||||||
内容記述 | 4pages | |||||
内容記述タイプ | Other | |||||
出版者 | ||||||
出版者 | The American Physical Society | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
DOI | ||||||
関連識別子 | ||||||
識別子タイプ | DOI | |||||
関連識別子 | http://dx.doi.org/10.1103/PhysRevLett.94.034501 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0031-9007 | |||||
書誌情報 |
Physical Review Letters 巻 94, p. 034501-034501, 発行日 2005-01 |
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application/pdf | ||||||
著者版フラグ | ||||||
値 | publisher | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/7152 | |||||
識別子タイプ | HDL |