3-D FLOW-ANALYSIS OF NON-NEWTONIAN VISCOUS FLUIDS USING ENRICHED FINITE-ELEMENTS

被引：18
|
作者：
GUPTA, M
KWON, TH
机构：
[1] Department of Mechanical and Aerospace Engineering, Rutgers, the State University of New Jersey, Piscataway, New Jersey
[2] Department of Mechanical Engineering, Pohang Institute of Science & Technology
来源：
POLYMER ENGINEERING AND SCIENCE | 1990年 / 30卷 / 22期
关键词：
D O I：
10.1002/pen.760302203
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
‘Enriched’ element, Q1+Po, and ‘standard’ element, Q1Po, are compared for the simulation of 3‐dimensional flow of non‐Newtonian fluids. Several 3‐dimensional polymer flow problems are analyzed. The pressure field obtained by using Q1Po elements suffers from spurious pressure modes. For complex flows, depending upon the flow geometry and the boundary conditions used, Q1+Po elements may fall to simulate even the velocity field. Q1Po elements, which satisfy the Babuska‐Brezzi condition, give accurate velocity and pressure distributions for all the problems analyzed here. Copyright © 1990 Society of Plastics Engineers
引用
收藏
页码：1420 / 1430
页数：11
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