A study on geophysical fluid dynamics of a proto-planetary accretion disk

原行星吸积盘地球物理流体动力学研究

• 批准号: 21654065
• 负责人: HAYASHI Yoshiyuke
• 金额: $ 2.09万
• 依托单位: Kobe University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21654065/
• 关键词: 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

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.

我们检查了统治基本方程式的表述，这些方程描述了原球面积聚磁盘的发展，并讨论了地球物理流体动力学各种概念在其流体运动中的适用性，并重新考虑了基本领域和干扰的结构。我们确认，应满足地球物理流体动力学的轴对称场应满足的条件，也应满足原球网磁盘的星云气体场。然而，看来干扰的结构与斜射液体动力学的斜压不稳定障碍截然不同。

项目成果

Minimum Dust Abundances for Planetesimal Formation via Secular Gravitational Instabilities

通过长期引力不稳定性形成微行星的最小尘埃丰度

• 发表时间: 2012
• 期刊: The Astrophysical Journal
• 作者: Takeuchi;T.;and Ida;S.
• 通讯作者: S.

Growth of Settling Dust Particles in Turbulent Disks

湍流盘中沉降灰尘颗粒的生长

• 发表时间: 2009
• 期刊: Exoplanets and Disks : Their Formation and Diversity", eds. T.Usuda, M.Ishii, M.Tamura
• 作者: Hanae Matsuo;Masaki Ishiwatari;Shin-ichi Takehiro;Yoshi-Yuki Hayashi;Kensuke Nakajima;前田京剛;T.Takeuchi
• 通讯作者: T.Takeuchi

The effect of filaments on the axisymmetrization process of the 2D elliptic vortex with non-uniform vorticity

细丝对非均匀涡度二维椭圆涡轴对称过程的影响

• 发表时间: 2010
• 作者: 村上真也;岩山隆寛
• 通讯作者: 岩山隆寛

INDUCED TURBULENCE AND THE DENSITY STRUCTURE OF THE DUST LAYER IN A PROTOPLANETARY DISK

• DOI: 10.1088/0004-637x/744/2/101
• 发表时间: 2011-09
• 期刊: The Astrophysical Journal
• 作者: T. Takeuchi;T. Muto;S. Okuzumi;N. Ishitsu;S. Ida

ガス抵抗およびダスト層内の乱流を考慮したダスト層の重力不安定性

考虑粉尘层内气体阻力和湍流的粉尘层重力不稳定性

• 发表时间: 2011
• 作者: 中島健介;松尾花枝;竹内拓
• 通讯作者: 竹内拓