Title
Numerical simulation of 2D unsteady shear-thinning non-Newtonian incompressible fluid in screw extruder with fictitious domain method.
Abstract
In this paper, we develop a fictitious domain method with Distributed Lagrange Multipliers for simulating 2D unsteady shear-thinning non-newtonian incompressible flow in a single-screw and twin-screw extruder. The advantage of the fictitious domain method is that one can use a fixed mesh even as the fluid domain changes in time (as the screws are rotating), eliminating the need for repeated remeshing and projection. The method uses a finite element discretization in space and an operator-splitting technique for discretization in time. Numerical results are given for the flow inside a single-screw extruder or twin-screw extruder, which show that the fictitious domain method is efficient for the problem.
Year
DOI
Venue
2017
10.1016/j.camwa.2016.11.005
Computers & Mathematics with Applications
Keywords
Field
DocType
Fictitious domain method,Incompressible fluid,Screw extruder
Compressibility,Discretization,Mathematical optimization,Computer simulation,Mathematical analysis,Lagrange multiplier,Fictitious domain method,Finite element method,Incompressible flow,Mathematics,Non-Newtonian fluid
Journal
Volume
Issue
ISSN
73
1
0898-1221
Citations 
PageRank 
References 
0
0.34
2
Authors
5
Name
Order
Citations
PageRank
Qiaolin He1112.18
Jinyang Huang200.34
Xiaoding Shi311.05
Xiao-Ping Wang419921.38
Chao Bi500.34