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波样耗散结构的空间构成及形成过程
Alternative TitleSPATIAL COMPOSITION AND FORMATION PROCESS OF WAVE DISSIPATIVE STRUCTURE
贾琛霞; 李凯; 敬成君; 有马博史
Source Publication力学学报
2010-07-18
Volume42Issue:4Pages:645-651
Abstract以直拉法单晶生长系统中熔体热对流波样耗散结构为研究对象,通过大规模数值模拟,首先获得了不同波数稳定波样流动的耗散结构,并应用正交分解法抽出了波样耗散结构的基本流动模式,分析了由基本流动模式形成耗散结构的动力学过程.结果表明:(1)构成宏观波样耗散结构的基本流动模式具有明显的规律性:(a)基本流动模式成组出现,(b)波数为n的波样耗散结构,每组包含n个基本流动模式,(c)流动基本模式在周向的波数随组序以n增加,在径向由1层增至多层;(2)波样耗散结构宏观上的旋转运动,是由于不同基本模式的轮番"出演"所致.研究结果丰富了人们对耗散结构的认识.
Keyword耗散结构 波样流动 正交分解 数值模拟 晶体生长
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Indexed ByEI ; CSCD
Language中文
Funding Organization国家自然科学基金资助项目(50876092)~~
CSCD IDCSCD:3903546
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/44044
Collection国家微重力实验室
Corresponding Author贾琛霞
Recommended Citation
GB/T 7714
贾琛霞,李凯,敬成君,等. 波样耗散结构的空间构成及形成过程[J]. 力学学报,2010,42(4):645-651.
APA 贾琛霞,李凯,敬成君,&有马博史.(2010).波样耗散结构的空间构成及形成过程.力学学报,42(4),645-651.
MLA 贾琛霞,et al."波样耗散结构的空间构成及形成过程".力学学报 42.4(2010):645-651.
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