| Project/Area Number |
21654065
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Meteorology/Physical oceanography/Hydrology
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| Research Institution | Kobe University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
NAKAGAWA Yoshitsugu 神戸大学, 大学院・理学研究科, 教授 (30172282)
IWAYAMA Takahiro 神戸大学, 大学院・理学研究科, 准教授 (10284598)
TAKEUCHI Taku 東京工業大学, 理工学研究科, 特任准教授 (40372651)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥3,270,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2009: ¥1,200,000 (Direct Cost: ¥1,200,000)
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| Keywords | 原始惑星系円盤 / 対流不安定 / ダスト成長 / 乱流 / 惑星形成 / 渦位保存則 / ダスト / プラズマ / 楕円渦 / フィラメント / 軸対称化 / 軸対象化過程 |
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| Research Abstract |
We examine formulation of the governing basic equations that describe developments of a protoplanetary accretion disk, and discuss applicability of various concepts of geophysical fluid dynamics to its fluid motions, and reconsider the structures of basic fields and disturbances. We confirm that the condition that should be satisfied by axisymmetric fields of geophysical fluid dynamics should be satisfied also for the nebula gas fields of protoplanetary accretion disk. However, it seems that the structure of disturbances is quite different from that of baroclinic unstable disturbances of geophysical fluid dynamics.
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