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CSEDI Collaborative Research: Next Generation Modeling of Core Turbulence via Combined Laboratory, Numerical and Theoretical Models

CSEDI Collaborative Research: Next Generation Modeling of Core Turbulence via Combined Laboratory, Numerical and Theoretical Models
CSEDI 协作研究:通过实验室、数值和理论组合模型对核心湍流进行下一代建模
批准号:
1068019
负责人:
Jonathan Aurnou
金额:
$29.0万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
2011
资助国家:
美国
项目状态:
已结题
起止时间:
2011-09-01 至 2014-08-31

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中文摘要
翻译
地磁场是由所谓的“流体发电机”产生的。这台发电机是由地球熔融金属核心快速旋转的湍流对流驱动的。然而,快速旋转的地核式对流湍流还没有得到准确的模拟。该项目的目标是提供快速旋转,湍流,核心式对流的第一个跨学科量化。在这样做的过程中,我们将大大加强我们对把地球变成一个巨大磁体的地核流的理解。我们将开发下一代地核湍流对流模型,以解决当前发电机产生模型的重大局限性。这些模型将结合领先的实验室旋转对流实验与最先进的有限元模型和先进的,渐近简化的旋转对流系统理论模型。我们将产生的数据对于地核和其他行星发电机的建模者,太阳和恒星对流带和发电机的建模者,以及地球气候和行星大气的建模者来说都是至关重要的。渐近简化建模工具将通过地球科学计算基础设施(CIG)网站公开提供。此外,我们将开发一个独特的地球科学教育电影图书馆,通过持续的实习,为有兴趣结合科学和纪录片制作的学生。
英文摘要
The geomagnetic field is generated by a so-called `fluid dynamo'. This dynamo is driven by rapidly rotating, turbulent convection in Earth's molten metal core. Yet rapidly rotating core-style convective turbulence has not been accurately simulated. The goal of this project is to provide the first cross-disciplinary quantification of rapidly rotating, turbulent, core-style convection. In doing so, we will greatly strengthen our understanding of the core flows that turn Earth into a giant magnet.We will develop next-generation models of turbulent convection in Earth's core to address significant limitations in current models of dynamo generation. These models will combine leading laboratory rotating convection experiments with state-of-the-art finite element models and with advanced, asymptotically reduced theoretical models of rotating convection systems. The data we will produce will be of fundamental importance to modelers of Earth's core and other planetary dynamos, as well as modelers of solar and stellar convection zones and dynamos, and modelers of Earth's climate and planetary atmospheres. The asymptotically reduced modeling tools will be made openly available through the Computational Infrastructure for Geosciences (CIG) website. Furthermore, we will develop a unique library of geoscience educational films, via an ongoing internship for students interested in combining science and documentary filmmaking.
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Phase VI: Development of the Core Fluid Dynamics Laboratory at UCLA
  • 批准号:
    2143939
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $82.84万
  • 财政年份:
    2022
  • 负责人:
    Jonathan Aurnou
  • 依托单位:
Phase V: Development of the Core Fluid Dynamics Laboratory at UCLA
  • 批准号:
    1853196
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $67.0万
  • 财政年份:
    2019
  • 负责人:
    Jonathan Aurnou
  • 依托单位:
Upgrading the Experimental Capabilities of the Core Fluid Dynamics Laboratory at UCLA
  • 批准号:
    1917291
  • 项目类别:
    Standard Grant
  • 资助金额:
    $46.47万
  • 财政年份:
    2019
  • 负责人:
    Jonathan Aurnou
  • 依托单位:
Phase IV: Continued Development of the Core Fluid Dynamics Laboratory at UCLA
  • 批准号:
    1547269
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $69.8万
  • 财政年份:
    2016
  • 负责人:
    Jonathan Aurnou
  • 依托单位:
海外基金