The Formation and Maintenance of the Zonal Winds of Jupiter and Saturn
木星和土星纬向风的形成和维持
基本信息
- 批准号:9423305
- 负责人:
- 金额:$ 14.5万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:1995
- 资助国家:美国
- 起止时间:1995-04-01 至 1999-03-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
94-23305 Marcus Prof. Marcus will model numerically the east-west winds in the upper troposphere (i.e., the visible cloud layer) of Jupiter and Saturn, using 3-D fluid-dynamics. The principal objective is to improve our understanding of why the winds are structured in zones or bands with alternating velocity directions from the equator to the poles. Additionally, the Principal Investigator (PI) will address other unresolved issues of those giant planets' atmospheres -- the number of bands, the magnitude of the wind velocities, the greater velocities of the Saturnian winds compared to the Jovian winds, and the relationship between the winds and the vortices embedded in them. The motivation for the work is that, unlike thermal convection in stars which can be reproduced and studied under laboratory conditions (albeit in simplified form), the mechanism of "east- west" winds of planetary atmospheres has not been modeled in the laboratory and all proposed methods for creating such winds remain mere conjectures. Yet we cannot claim to understand the outer planets until we understand their east-west winds. The PI will base his calculations on two different sets of assumptions: (1) The winds' vertical depth extends over tens of to several hundred density scale heights; and (2) the winds are confined to a thin vertical layer. The point is to decide between the two kinds of theories. The calculations will be done in both spherical and parabolic geometries. The latter geometry has the advantage that a parabolic dish containing a stable fluid overlying a convecting fluid can be built in a laboratory to test the validity of the numerical results, an experiment the PI is suggesting to be carried out by others.
94-23305马库斯马库斯教授将对对流层上部的东西风进行数值模拟(即,木星和土星的可见云层),使用三维流体动力学。 其主要目的是提高我们对风为什么从赤道到两极具有交替速度方向的区域或带的结构的理解。 此外,首席研究员(PI)将解决这些巨行星大气层的其他未解决的问题-带的数量,风速的大小,与木星风相比土星风的速度更大,以及风与嵌入其中的漩涡之间的关系。 这项工作的动机是,与可以在实验室条件下复制和研究的恒星热对流不同(尽管是以简化的形式),行星大气的“东西”风机制尚未在实验室中建模,所有提出的创造这种风的方法仍然只是假设。 然而,我们不能声称了解外行星,直到我们了解他们的东西风。 PI将基于两组不同的假设进行计算:(1)风的垂直深度延伸到几十到几百个密度标度高度;(2)风被限制在一个薄的垂直层。 关键是要在这两种理论之间做出选择。 计算将在球面和抛物面两种几何形状下进行。 后一种几何形状的优点是,可以在实验室中建造一个包含稳定流体覆盖对流流体的抛物盘,以测试数值结果的有效性,PI建议由其他人进行实验。
项目成果
期刊论文数量(0)
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科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Philip Marcus其他文献
Depth of a strong jovian jet from a planetary-scale disturbance driven by storms
风暴驱动的行星规模扰动产生的强烈木星喷流的深度
- DOI:
- 发表时间:
2008 - 期刊:
- 影响因子:64.8
- 作者:
A. Sánchez‐Lavega;Glenn S. Orton;R. Hueso;E. García‐Melendo;S. Pérez;A. Simon;J. F. Rojas;J. M. Gómez;P. Yanamandra;L. N. Fletcher;J. Joels;J. Kemerer;J. Hora;E. Karkoschka;I. Pater;M. Wong;Philip Marcus;Noemi Pinilla;F. Carvalho;C. Go;D. Parker;M. Salway;M. Valimberti;A. Wesley;Zac Pujic - 通讯作者:
Zac Pujic
The Israel Family Court – Therapeutic jurisprudence and jurisprudential therapy from the start
- DOI:
10.1016/j.ijlp.2018.06.006 - 发表时间:
2019-03-01 - 期刊:
- 影响因子:
- 作者:
Philip Marcus - 通讯作者:
Philip Marcus
E NFORCING H ARD P HYSICAL C ONSTRAINTS IN CNN S T HROUGH D IFFERENTIABLE PDE L AYER
通过可微偏微分方程层在 CNN 中强化硬物理约束
- DOI:
- 发表时间:
2020 - 期刊:
- 影响因子:0
- 作者:
Chiyu “Max”;Jiang;K. Kashinath;Lawrence Berkeley;National Lab;Philip Marcus - 通讯作者:
Philip Marcus
Fibrocystic Lung Disease: An Unusual Cause
- DOI:
10.1378/chest.91.1.113 - 发表时间:
1987-01-01 - 期刊:
- 影响因子:
- 作者:
Steven G. Orshan;Leonard J. Rossoff;Philip Marcus - 通讯作者:
Philip Marcus
Philip Marcus的其他文献
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{{ truncateString('Philip Marcus', 18)}}的其他基金
Collaborative EAGER Proposal: The Dead Zones of Protoplanetary Disks are Not Dead - How Turbulence Transports Angular Momentum and Forms Planetesimals
协作式 EAGER 提案:原行星盘的死区并未死——湍流如何传输角动量并形成星子
- 批准号:
1510703 - 财政年份:2015
- 资助金额:
$ 14.5万 - 项目类别:
Standard Grant
Title: RUI & Collaborative Research: Planet Embryos in Vortex Wombs: Simulations of Gas, Dust and Magnetic Fields in Protoplanetary Disks and the Formation of Planets
标题: 锐
- 批准号:
1010046 - 财政年份:2010
- 资助金额:
$ 14.5万 - 项目类别:
Continuing Grant
Automated extraction of Saturn's winds and comparison with 3D simulations of Saturn's two polar vortices and transient vortices
自动提取土星风并与土星两极涡旋和瞬态涡旋的 3D 模拟进行比较
- 批准号:
1009907 - 财政年份:2010
- 资助金额:
$ 14.5万 - 项目类别:
Continuing Grant
Variability in Jupiter's Weather and Climate
木星天气和气候的变化
- 批准号:
0808200 - 财政年份:2008
- 资助金额:
$ 14.5万 - 项目类别:
Standard Grant
Computation of 3D Hydrodynamic, Hydromagnetic and Dust-Laden Flows in Protoplanetary Disks and Their Roles in Planetesimal and Star Formation
原行星盘中 3D 流体动力、流体磁力和尘埃流动的计算及其在小行星和恒星形成中的作用
- 批准号:
0607836 - 财政年份:2006
- 资助金额:
$ 14.5万 - 项目类别:
Continuing Grant
Vortices in Protoplanetary Disks: Their Role in Angular Momentum Transport and Planetesimal Formation
原行星盘中的涡旋:它们在角动量传输和星子形成中的作用
- 批准号:
0098465 - 财政年份:2001
- 资助金额:
$ 14.5万 - 项目类别:
Continuing Grant
Vortex Structure, Inverse Cascades, and Turbulent Bursts in Rotating, Stratified Flows
旋转层流中的涡流结构、逆级联和湍流爆发
- 批准号:
9978842 - 财政年份:2000
- 资助金额:
$ 14.5万 - 项目类别:
Standard Grant
De-Stabilization of Aircraft Wake Vortices
飞机尾流涡的失稳
- 批准号:
9632579 - 财政年份:1996
- 资助金额:
$ 14.5万 - 项目类别:
Continuing Grant
Computer-Enhanced Classroom Instruction in Mathematics
计算机增强数学课堂教学
- 批准号:
9352029 - 财政年份:1993
- 资助金额:
$ 14.5万 - 项目类别:
Standard Grant
The Dynamics of Long-Lived Planetary Vortices
长寿行星涡旋的动力学
- 批准号:
9119766 - 财政年份:1992
- 资助金额:
$ 14.5万 - 项目类别:
Continuing Grant
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