文献类型：期刊文献

英文题名：A simple method for simulating viscoelastic fluid flows in slit channel

作者：Li, Yong[1];Zheng, Jianrong[1];Zhou, Wei[1]

机构：[1]E China Univ Sci & Technol, Dept Mech Engn, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

年份：2011

卷号：25

期号：6

起止页码：355

外文期刊名：INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS

收录：;EI(收录号：20113514272115);WOS:【SCI-EXPANDED(收录号:WOS:000299686100005)】；

语种：英文

外文关键词：viscoelastic fluid; slit channel; the finite piece method; numerical simulation; the finite element method

摘要：A low-cost semi-analysis finite element technique, named the finite piece method (FPM) is presented in this article. It aims to solve three-dimensional (3D) viscoelastic slit flows. The viscoelastic stress of the fluid is modelled using an K-BKZ integral constitutive equation of the Wagner type. Picard iteration is used to solve non-linear equations. The FPM is tested on flow problems in both planar and contraction channels. The accuracy of the method is assessed by comparing flow distributions and pressure with results obtained by 3D finite element method (FEM). It shows that the solution accuracy is excellent and a substantial amount of computing time and memory requirement can be saved.