Interdisciplinary Summer School: Granular Flows-From Simulations to Astrophysical Applications; University of Maryland, College Park; June 13-17, 2011

跨学科暑期学校：颗粒流——从模拟到天体物理应用；

• 批准号: 1115639
• 负责人: Wolfgang Losert
• 金额: $ 0.6万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-02-15 至 2012-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1115639&HistoricalAwards=false
• 关键词: Interdisciplinary; Summer; Granular; Flows; Simulations

An Interdisciplinary Summer School will take place at the University of Maryland College Park June 13-17 2011 entitled "Granular Flows - From Simulations to Astrophysical Applications". The aim is to bring together experts and students from both granular physics and astrophysics and focus on state-of-the-art experimental and simulation approaches for granular flows that are emerging in both physics and astrophysics. Granular flows are encountered in a wide range of astrophysical applications from asteroids to planetary rock avalanches. Our knowledge about these flows is exploding due to recent and planned robotic missions to various asteroids, comets, and other planetary bodies. The trove of data is being analyzed now, with patterns of granular arrangements and samples of granular materials returning for analysis. At the same time, significant progress has been made over the last two decades to elucidate the physics of granular flows, from the description of the jamming transition, to analysis of segregation and 3-D flows. For basic physics of granular flows, these new observations offer an unprecedented opportunity to apply the knowledge gained in the last decades on granular flows, and to expand the test of models into a regime of varying gravity, in particular the very low gravity of asteroids. The school will include hands-on components where students will learn how to simulate granular flows and how to evaluate results from flow simulations critically. Corey O?Hern (Yale University) and Derek Richardson (UMD) will lead hands-on afternoon training sessions for students on direct numerical simulations. In addition, experts in experimental studies of dense granular flows will train students in experimental measurements of granular flow fields and forces.

2011年6月13日至17日，一个跨学科的暑期学校将在马里兰州大学公园举行，题为“颗粒流-从模拟到天体物理学应用”。其目的是汇集来自颗粒物理学和天体物理学的专家和学生，并专注于物理学和天体物理学中出现的颗粒流的最先进的实验和模拟方法。颗粒流在从小行星到行星岩石雪崩的广泛天体物理应用中遇到。由于最近和计划中的机器人任务，我们对这些流动的了解正在爆炸，各种小行星，彗星和其他行星体。现在正在分析这些数据，颗粒排列的模式和颗粒材料的样本正在返回进行分析。与此同时，在过去的二十年里，在阐明颗粒流的物理学方面取得了重大进展，从堵塞过渡的描述到分离和三维流动的分析。对于颗粒流的基本物理学而言，这些新的观测提供了一个前所未有的机会，可以应用过去几十年中获得的关于颗粒流的知识，并将模型测试扩展到重力变化的范围，特别是小行星的极低重力。学校将包括动手组件，学生将学习如何模拟颗粒流，以及如何从流模拟批判性地评估结果。科里·奥Hern（耶鲁大学）和Derek Richardson（UMD）将为学生提供直接数值模拟的下午实践培训课程。此外，稠密颗粒流实验研究专家将培训学生颗粒流场和力的实验测量。