SIMULATION OF HIGHLY ELASTIC FLUID-FLOWS WITHOUT ADDITIONAL NUMERICAL DIFFUSIVITY

被引：18

作者：

BASOMBRIO, FG

BUSCAGLIA, GC

DARI, EA

机构：

[1] División Mecánica Computacional, DIA, Centro Atómico Bariloche, 8400 S.C. de Bariloche, RN

来源：

JOURNAL OF NON-NEWTONIAN FLUID MECHANICS | 1991年 / 39卷 / 02期

关键词：

DECOUPLED APPROACH; FINITE ELEMENT METHOD; LESAINT-RAVIART METHOD; VISCOELASTIC FLUIDS;

D O I：

10.1016/0377-0257(91)80011-8

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A transient decoupled method to treat viscoelastic flows is presented, using Lagrange-Galerkin techniques for velocities and the Lesaint-Raviart method for extra-stresses. An important point of our scheme is the linear interpolation employed for all fields: this allows for high Weissenberg numbers to be reached with no need for streamline upwinding (SU). Numerical results for the 4:1 plane contraction are presented, including comparisons with other methods and an analysis of the effect of mesh refinement and SU addition.

引用

页码：189 / 206

页数：18

共 20 条

[1]

BASOMBRIO FG, 1990, UNPUB J NONNEWTONIAN

[2] SOME FAST 3D FINITE-ELEMENT SOLVERS FOR THE GENERALIZED STOKES PROBLEM [J].