QQ客服 官方微博 反馈留言

	Crucial properties of the moment closure model FENE-QE
	Wang, Han ; Li, Kun ; Zhang, Pingwen
	2008
关键词	constitutive equation kinetic theory FENE dumbbells closure approximation quasi-equilibrium approximation FINITELY EXTENSIBLE DUMBBELLS DILUTE POLYMER-SOLUTIONS BROWNIAN CONFIGURATION FIELDS FOKKER-PLANCK EQUATION VISCOELASTIC FLOWS KINETIC-THEORY APPROXIMATIONS SIMULATION CONNFFESSIT DYNAMICS
英文摘要	We investigate four crucial properties for testing and evaluating a moment closure approximation of the FENE dumbbell model for dilute polymer solutions: non-negative configuration distribution function, energy dissipation, accuracy of approximation and computational expense. Through mathematical analysis, numerical experiments and comparisons with closure model FENE-P and FENE-YDL, we prove that the FENE-QE approximation has non-negative configuration distribution function, approximates the energy dissipation behavior of original kinetic theory and provides good accuracy. To improve the efficiency of this closure approximation, we introduce a piecewise linear approximation technique that greatly reduces the computational cost. This extension of FENE-QE, FENE-QE-PLA, is the closure model we recommend for simulating dilute polymer solutions. (C) 2007 Elsevier B.V. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000255296000002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Mechanics; SCI(E); EI; 10; ARTICLE; 2-3; 80-92; 150
语种	英语
出处	SCI ; EI
出版者	非牛顿流体力学杂志
内容类型	其他
源URL	[http://hdl.handle.net/20.500.11897/248562]
专题	数学科学学院
推荐引用方式 GB/T 7714	Wang, Han,Li, Kun,Zhang, Pingwen. Crucial properties of the moment closure model FENE-QE. 2008-01-01.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。