Hydrodynamical Processes in High Energy Astrophysics

高能天体物理学中的流体动力学过程

• 批准号: 9006958
• 负责人: Jeremiah Ostriker
• 金额: $ 7.33万
• 依托单位: Princeton University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-08-01 至 1992-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9006958&HistoricalAwards=false
• 关键词: Hydrodynamical; Processes; Energy; Astrophysics

This program, to be carried out by one of the world's leading theoretical astrophysicists, seeks to break new ground in the study of large-scale cosmic structure, and of the infall of matter onto compact objects. It will do this by implementing modern grid-based hydrocodes, to be adapted from successful aerodynamic codes. Previous work in cosmological modeling has been based primarily on sophisticated N-body codes, which, while adequate for studying dark matter, are less well adapted to observable gaseous matter. True hydrodynamic computational methods will be developed, which can treat shocks and radiative processes, and permit the direct calculation of X-ray emission, fluctuations in the cosmic background radiation, and other phenomena not accessible from the N-body approach.

该计划将由世界领先的 理论天体物理学家，寻求在研究中开辟新天地 大规模的宇宙结构，物质的下落 紧凑的对象。 它将通过实施现代的基于网格的 流体动力学代码，将根据成功的空气动力学代码进行改编。 以前的宇宙学建模工作主要基于 复杂的N体密码，虽然足够研究黑暗 物质，不太好地适应可观测的气体物质。 真 将开发流体动力学计算方法， 处理冲击和辐射过程，并允许直接 计算X射线发射，宇宙中的波动 背景辐射和其他现象 N体方法。