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  1. 学術雑誌掲載済論文
  2. 洋雑誌

A Mesoscopic Numerical Study of Sea Ice Crystal Growth and Texture

https://kitami-it.repo.nii.ac.jp/records/7503
d71e9d33-77ad-4f04-ade8-a031e89eb527
名前 / ファイル ライセンス アクション
kikai_ohashi_a_01.pdf kikai_ohashi_a_01.pdf (1.1 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2011-06-21
タイトル
言語 en
タイトル A Mesoscopic Numerical Study of Sea Ice Crystal Growth and Texture
言語
言語 eng
キーワード
主題Scheme Other
主題 Sea ice
キーワード
主題Scheme Other
主題 Development of microstructure
キーワード
主題Scheme Other
主題 Geometrical selection
キーワード
主題Scheme Other
主題 Temperature gradient
キーワード
主題Scheme Other
主題 Instability of solid-liquid interface
キーワード
主題Scheme Other
主題 Numerical simulation
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ journal article
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
著者 Kawano, Yoshiki

× Kawano, Yoshiki

WEKO 38458

en Kawano, Yoshiki

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Ohashi, Tetsuya

× Ohashi, Tetsuya

WEKO 38459

en Ohashi, Tetsuya

Search repository
著者別名
姓名
姓名 河野, 義樹
言語 ja
著者別名
姓名
姓名 大橋, 鉄也
言語 ja
抄録
内容記述タイプ Abstract
内容記述 Development of sea ice polycrystals is simulated in two and three dimensions by a simple and efficient simulation technique, so-called Voronoi dynamics. First, effects of salt diffusion and heat flux are ignored and mutual impingements of stellar-shaped crystals are simulated in three-dimensional space. The simulated crystal texture and its c-axes distribution as a function of depth from the sea surface are shown to be in good agreement with experimental results. Next, three simulations are performed with different sets of parameters for growth rate in the basal plane. The obtained results show that geometrical selection of c-axes is more significant in weak anisotropy of growth rate in the basal plane than in strong anisotropy in the basal plane. However, the effect of the anisotropy on geometrical selection is modest. Effects of salt diffusion with time and salt rejection from growing ice to the ice?seawater interface as well as ocean heat flux are then incorporated into two-dimensional simulations. The results show that grains branch into thin ice platelets due to the relatively slow diffusion process during their growth. When the effect of heat flux is taken into consideration, the platelets align in the vertical direction, and homogeneous columnar ice is formed. These results are in accordance with microstructural features of real sea ice.
内容記述
内容記述タイプ Other
内容記述 NOTICE: This is the author's version of a work accepted for publication by Elsevier. Changes resulting from the publishing process, including peer review, editing, corrections, structual formatting and other quality control mechanisms, may not be reflected in this document. Changes may have been to this work since it was submitted for publication.
書誌情報 Cold Regions Science and Technology

巻 57, 号 1, p. 39-48, 発行日 2009-09
DOI
関連識別子
識別子タイプ DOI
関連識別子 http://doi.org/10.1016/j.coldregions.2009.02.001
フォーマット
内容記述タイプ Other
内容記述 application/pdf
出版者
出版者 Elsevier
著者版フラグ
値 author
出版タイプ
出版タイプ AM
出版タイプResource http://purl.org/coar/version/c_ab4af688f83e57aa
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