Voronoi Dynamics Simulation of Development of Lamellar Microstructure in Sea Ice
Developments of sea ice polycrystals from the sea surface are simulated in two-dimensional approximation by combining numerical methods for crystal growth, salinity diffusion and flux of heat. An anisotropic growth of ice crystals from a number of nuclei and their mutual impingements are numerically...
Published in: | TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A |
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一般社団法人日本機械学会
2008
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Online Access: | https://kitami-it.repo.nii.ac.jp/record/8028/files/2008_海氷の層状微視組織形成のボロノイダイナミクスシミュレーション.pdf |
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ftkitamiit:oai:kitami-it.repo.nii.ac.jp:00008028 2023-05-15T18:17:29+02:00 Voronoi Dynamics Simulation of Development of Lamellar Microstructure in Sea Ice 海氷の層状微視組織形成のボロノイダイナミクスシミュレーション 河野, 義樹 大橋, 鉄也 2008-07 application/pdf https://kitami-it.repo.nii.ac.jp/record/8028/files/2008_海氷の層状微視組織形成のボロノイダイナミクスシミュレーション.pdf jpn jpn 一般社団法人日本機械学会 http://doi.org/10.1299/kikaia.74.946 日本機械学會論文集. A編 743 74 946 953 https://kitami-it.repo.nii.ac.jp/record/8028/files/2008_海氷の層状微視組織形成のボロノイダイナミクスシミュレーション.pdf c 2008 一般社団法人日本機械学会 open access Sea Ice Crystal Growth Microstructure Brine Region Ice Platelet 2008 ftkitamiit https://doi.org/10.1299/kikaia.74.946 2023-02-26T09:13:27Z Developments of sea ice polycrystals from the sea surface are simulated in two-dimensional approximation by combining numerical methods for crystal growth, salinity diffusion and flux of heat. An anisotropic growth of ice crystals from a number of nuclei and their mutual impingements are numerically reproduced by a simple and novel technique, named Voronoi dynamics. Discharge of salt from solidified region and salinity condensation at the solid-liquid interface are also taken into consideration. Diffusion process of salinity and heat flux are evaluated by solving equations for diffusion and heat conduction, and growth of ice crystals is affected by these two factors. Results show that a layer of granular grains is formed near the sea surface and columnar shaped grains develop below it. Brine regions are mainly formed along grain boundaries in the layer of granular grains. In the region of columnar shaped grains, brine regions exist not only along grain boundaries but also inside grains. Columnar shaped crystal grains consist of ice platelets growing in the vertical direction and brine layers between them. These microstructural features are in accordance with experimental observations. journal article Other/Unknown Material Sea ice Kitami Institute of Technology Repository (KIT-R) TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A 74 743 946 953 |
institution |
Open Polar |
collection |
Kitami Institute of Technology Repository (KIT-R) |
op_collection_id |
ftkitamiit |
language |
Japanese |
topic |
Sea Ice Crystal Growth Microstructure Brine Region Ice Platelet |
spellingShingle |
Sea Ice Crystal Growth Microstructure Brine Region Ice Platelet 河野, 義樹 大橋, 鉄也 Voronoi Dynamics Simulation of Development of Lamellar Microstructure in Sea Ice |
topic_facet |
Sea Ice Crystal Growth Microstructure Brine Region Ice Platelet |
description |
Developments of sea ice polycrystals from the sea surface are simulated in two-dimensional approximation by combining numerical methods for crystal growth, salinity diffusion and flux of heat. An anisotropic growth of ice crystals from a number of nuclei and their mutual impingements are numerically reproduced by a simple and novel technique, named Voronoi dynamics. Discharge of salt from solidified region and salinity condensation at the solid-liquid interface are also taken into consideration. Diffusion process of salinity and heat flux are evaluated by solving equations for diffusion and heat conduction, and growth of ice crystals is affected by these two factors. Results show that a layer of granular grains is formed near the sea surface and columnar shaped grains develop below it. Brine regions are mainly formed along grain boundaries in the layer of granular grains. In the region of columnar shaped grains, brine regions exist not only along grain boundaries but also inside grains. Columnar shaped crystal grains consist of ice platelets growing in the vertical direction and brine layers between them. These microstructural features are in accordance with experimental observations. journal article |
author |
河野, 義樹 大橋, 鉄也 |
author_facet |
河野, 義樹 大橋, 鉄也 |
author_sort |
河野, 義樹 |
title |
Voronoi Dynamics Simulation of Development of Lamellar Microstructure in Sea Ice |
title_short |
Voronoi Dynamics Simulation of Development of Lamellar Microstructure in Sea Ice |
title_full |
Voronoi Dynamics Simulation of Development of Lamellar Microstructure in Sea Ice |
title_fullStr |
Voronoi Dynamics Simulation of Development of Lamellar Microstructure in Sea Ice |
title_full_unstemmed |
Voronoi Dynamics Simulation of Development of Lamellar Microstructure in Sea Ice |
title_sort |
voronoi dynamics simulation of development of lamellar microstructure in sea ice |
publisher |
一般社団法人日本機械学会 |
publishDate |
2008 |
url |
https://kitami-it.repo.nii.ac.jp/record/8028/files/2008_海氷の層状微視組織形成のボロノイダイナミクスシミュレーション.pdf |
genre |
Sea ice |
genre_facet |
Sea ice |
op_relation |
http://doi.org/10.1299/kikaia.74.946 日本機械学會論文集. A編 743 74 946 953 https://kitami-it.repo.nii.ac.jp/record/8028/files/2008_海氷の層状微視組織形成のボロノイダイナミクスシミュレーション.pdf |
op_rights |
c 2008 一般社団法人日本機械学会 open access |
op_doi |
https://doi.org/10.1299/kikaia.74.946 |
container_title |
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A |
container_volume |
74 |
container_issue |
743 |
container_start_page |
946 |
op_container_end_page |
953 |
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1766191733351120896 |