Phase Transitions and Pattern Formation

相变和图案形成

• 批准号: 8902354
• 负责人: Charles Knobler
• 金额: $ 70.49万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-05-01 至 1994-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8902354&HistoricalAwards=false
• 关键词: Phase; Transitions; Pattern; Formation

Professor Charles Knobler is supported by a grant from The Theoretical and Computational Chemistry Program to study problems associated with the dynamics of phase transitions and pattern formation in condensed systems. Experiments and computer simulations will be used to study Breath Figures, the patterns formed when droplets condense on partially wetted surfaces. The research will focus on the mechanism of growth of single droplets and the effects on the patterns of fluid-surface interactions. Investigations of monolayers of fatty acids at the air-water interface will also be conducted. The evolution of two-dimensional foams at the Gas-Liquid Expanded phase transition will be studied and investigations will be carried out on the growth of striated patterns that are observed in deep quenches into Liquid Expanded-Liquid Condensed and Liquid Expanded-Gas two-phase regions. Pattern formation at interfaces in photochemical reactions will also be investigated. Finally, continued light scattering measurements on systems with three coexisting phases along a path leading to a tricritical point will provide information about the asymptotic form of the free energy.

教授查尔斯Knobler是由赠款的支持， 理论和计算化学课程学习 与相变动力学相关的问题， 凝聚系统中的图案形成。 实验和计算机模拟将用于研究 呼吸图，当水滴凝结在 部分湿润的表面。 研究将集中在 单液滴的生长机理及其对液滴的影响 流体与表面相互作用的模式。 调查 空气-水界面处的脂肪酸单层也将 进行。 二维泡沫的演化 将研究气液膨胀相变， 将对条纹状的生长进行调查 在液体中深度淬火时观察到的图案 膨胀液-凝液-膨胀气两相流 地区 光化学中界面的图案形成 还将研究反应。 最后，持续的光 三相共存系统的散射测量 沿着通向三临界点的路径将提供 关于自由能的渐近形式的信息。