Patterns and Growth Far from Equilibrium

远离均衡的模式和增长

• 批准号: 9420335
• 负责人: Leonard Sander
• 金额: $ 29.1万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-12-01 至 1998-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9420335&HistoricalAwards=false
• 关键词: Patterns; Growth; Far; Equilibrium

9420335 Sander A series of projects in the theory of statistical physics far from equilibrium will be studied. The growth of random rough surfaces will be considered; new work is proposed in the description of growth by molecular-beam epitaxy. An inverse method will be applied to the generic theory of interface growth, and the Kuramoto-Shivashinsky equation of flame fronts will be investigated using the same techniques. Three problems related to the diffusion-limited aggregation model will be studied: the question of lacunarity, a statistical analysis of the homogenieties of the fractal clusters produced by the model, and the inverse method will be applied to generate a continuum equation. Finally work will be done in the field of patterns and fluctuations in chemical reactions. In the context of two simple statistical models an attempt to understand the effects of noise and disorder on the formation of chemical patterns will be undertaken. %%% A series of projects will be undertaken on systems which are not in equilibrium. Examples of these systems include: the growth of surfaces in materials, the behavior of flames, models of aggregation of particles, pattern formation occuring in chemical reactions and the effects of noise on these systems. Common models which describe these various phenomena will be studied.

9420335桑德一系列项目的统计物理理论远离平衡将被研究。 随机粗糙表面的生长将被认为是新的工作提出了分子束外延生长的描述。 一个逆方法将适用于通用理论的界面生长，和Kuramoto-Shivashinsky方程的火焰前锋将使用相同的技术进行调查。 三个问题有关的扩散限制聚集模型将被研究：空隙的问题，统计分析的模型产生的分形集群的均匀性，和逆方法将被应用到生成一个连续方程。 最后，将在化学反应的模式和波动领域开展工作。 在两个简单的统计模型的背景下，试图了解噪声和无序对化学模式形成的影响。 将在不平衡的系统上开展一系列项目。 这些系统的例子包括：材料表面的生长，火焰的行为，颗粒聚集的模型，化学反应中发生的图案形成以及噪声对这些系统的影响。 将研究描述这些不同现象的常见模型。