Onsager principle as a tool for approximation

• 来源期刊: 中国物理B（英文版）
• 关键词: reciprocal relation dissipation function Rayleighian slow variable diffusion dynamics gel dy-namics
• 年，卷（期）: 2015,（2）
• 页码范围: 020505-1-020505-6
• 页数: 1页
• 语种: 英文
• DOI: 10.1088/1674-1056/24/2/020505

摘要

Onsager principle is the variational principle proposed by Onsager in his celebrated paper on the reciprocal relation. The principle has been shown to be useful in deriving many evolution equations in soft matter physics. Here the principle is shown to be useful in solving such equations approximately. Two examples are discussed: the diffusion dynamics and gel dynamics. Both examples show that the present method is novel and gives new results which capture the essential dynamics in the system.