U.S.-Chile Cooperative Research: Pattern Formation in Vertically Oscillated Granular Materials

9415709斯温尼这个美洲项目奖将资助一个合作研究项目。德克萨斯大学奥斯汀分校的哈里·斯温尼和智利圣地亚哥大学的弗朗西斯科·梅洛博士介绍了颗粒流的物理学。研究人员将就垂直振荡颗粒材料中二维空间图案的形成进行实验。这些图案的形成和演化将使用数字成像技术进行研究，分析将检查能量耗散、气压、颗粒大小和作用力对集体运动的影响。这项研究的目标是发展新的见解，以全面了解这些颗粒状材料中形成空间图案的潜在机制。颗粒材料在采矿、农业和建筑等行业中发挥着重要作用，但对控制这些材料集体行为的基本过程缺乏了解。拟议的合作研究应对理解颗粒流的物理作出基本贡献，并应有助于理解涉及颗粒流的工业过程中各种参数的作用。

9415709 Swinney This Americas Program award will fund a collaborative research project between dr. Harry Swinney, University of Texas, Austin, and Dr. Francisco Melo, Universidad de Santiago de Chile, on the physics of granular flow. The researchers will conduct experiments on the formation of two- dimensional spatial patterns in vertically oscillated granular materials. The formation and evolution of the patterns will be studied using digital imaging techniques and analyses will examine the effects of energy dissipation, air pressure, particle size, and forcing on the collective motion . The goal of the research is to develop new insights towards a full understanding of the underlying mechanism in the formation of the spatial patterns in these granular materials. Granular materials play an important role in industries such as mining , agriculture, and construction, yet an understanding of the fundamental processes governing the collective behavior of these materials is lacking. The proposed collaborative research should make a fundamental contribution to the understanding of the physics of granular flow, and should help in understanding the role of parameters that are varied in industrial processes involving the granular flow., ***