摘要
过程工业中的多数复杂现象都具有非均匀的结构,并呈现多尺度的特征。这一特征产生的根源在于构成系统的大量基本单元之间的相互作用。因此,量化这些复杂现象的根本途径之一是建立单元模型并量化单元之间的相互作用,即:从最基本的单元过程着手,通过多级并行处理,复现很复杂的现象;另一途径则是多尺度分析,即从复杂现象的重要特征着手,寻求产生这一特征的内在机制。本文阐述这两种途径的基本思路及相互关系,并由此提出若干应予重视的研究方向。
Most phenomena in process engineering are of complexity, characterized by heterogeneous structure with multi-scale features, which is attributed to the interaction between numerous elements in systems. Quantification of these phenomena needs to understand the interaction between elements, that is, complex phenomena could be generated by simulating the interaction between elements if an appropriate scale is selected, at which the intrinsic nature of systems could be represented. Another approach could be multi-scale analysis in which variational criteria are needed to characterize the dominant mechanisms. This paper discusses these two different approaches and their relationships with prospects of research needs in this field.
出处
《化工进展》
EI
CAS
CSCD
1999年第5期11-13,21,共4页
Chemical Industry and Engineering Progress
基金
国家自然科学基金资助项目
关键词
复杂系统
过程工程
多尺度分析
单元模拟
模拟
complex systems, process engineering, multi-scale analysis, discrete simulation
