ITR--MHD Turbulence in Black Hole Accretion: A Testbed for Interactive Visualization of Large 3-d Datasets

ITR--黑洞吸积中的 MHD 湍流：大型 3-d 数据集交互式可视化的测试平台

• 批准号: 0313031
• 负责人: Julian Krolik
• 金额: --
• 依托单位: Johns Hopkins University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-01 至 2008-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0313031&HistoricalAwards=false
• 关键词: ITR; MHD; Turbulence; Black; Hole

AST-0313031KrolikThe investigators intend to create the next generation of scientific visualization systems, with particular application to the results of magneto-hydrodynamic simulations of black hole accretion. Complex simulations of this sort require an application which is more flexible and much more easily manipulated by users who are not computer specialists than any existing technique. The new system will emphasize speed and ease of use, and tying system development to a specific scientific problem will ensure that it is realistically designed and well tested. The PIs already have a prototype system, but it requires significant enhancement to become a working tool for scientific analysis, particularly in the areas of interactive data set combination, hierarchical visualization of vector fields, and graphics-hardware-compatible compression and decompression.Using this interactive system will deepen our understanding of accretion, by showing characteristic timescales and thus which process is dominating the dynamics, by defining the topology of the magnetic field lines, and by enabling investigation of quasi-periodic oscillations. It will also explore the generation of stresses in accretion flows, how energy release is controlled, and where energy is dissipated.The research will provide a solid basis for user-guided visualization in many other scientific fields, through public availability of the developed system. It will train graduate students in both sophisticated data analysis and computer systems development, and it will expose undergraduates to sophisticated problems.

AST-0313031Krolik 研究人员打算创建下一代科学可视化系统，特别应用于黑洞吸积磁流体动力学模拟的结果。 此类复杂的模拟需要比任何现有技术更灵活且更容易被非计算机专家的用户操作的应用程序。 新系统将强调速度和易用性，将系统开发与特定的科学问题联系起来将确保其设计切合实际并经过良好的测试。 PI 已经有了一个原型系统，但它需要显着增强才能成为科学分析的工作工具，特别是在交互式数据集组合、向量场的分层可视化以及图形硬件兼容的压缩和解压缩等领域。交互式系统将通过显示特征时间尺度以及哪个过程在动力学中占主导地位、通过定义磁场线的拓扑结构以及通过准周期振荡的研究来加深我们对吸积的理解。 它还将探索吸积流中应力的产生、如何控制能量释放以及能量消散的位置。通过公开开发的系统，该研究将为许多其他科学领域的用户引导可视化提供坚实的基础。 它将培训研究生复杂的数据分析和计算机系统开发，并使本科生接触复杂的问题。