TY - JOUR
ID - 1604
TI - A node enrichment strategy in Collocated Discrete Least Squares meshless method for the solution of generalized Newtonian fluids flow
JO - Scientia Iranica
JA - SCI
LA - en
SN - 1026-3098
AU - Lashckarbolok, Mohsen
AU - Jabbari, Ebrahim
AU - Vuik, Kees
AD - School of Civil Engineering; Iran University of Science and Technology,Tehran, School of Civil Engineering; Iran University of Science and Technology, Tehran, Iran
AD - School of Civil Engineering; Iran University of Science and Technology; Iran
AD - Delft Institute of Applied Mathematics; Netherlands, 2628 CD Delft, Mekelweg 4, room HB
Y1 - 2014
PY - 2014
VL - 21
IS - 1
SP - 1
EP - 10
KW - node enrichment
KW - meshless methods
KW - Carreau-Yasuda fluid
KW - Least squares technique
DO -
N2 - A simple node enrichment strategy using a gradient based error estimator is presented for the Collocated Discrete Least Squares (CDLS) meshless method. Also, a procedure is defined to distribute collocation points according tothefield nodes position. Here, shape functions are constructed using Radial Point Interpolation Method (RPIM). As temporal discretization a first-order accurate scheme, named semi-incremental fractional step method is used. One of the advantages of this scheme is its capability to use large time step sizes for the solution of the governing equations on steady state problems. The capability of the presented strategy is shown by investigating Carreau-Yasuda fluid flow model in solving lid-driven cavity flow problemwith different curve fitting indices values.
UR - http://scientiairanica.sharif.edu/article_1604.html
L1 - http://scientiairanica.sharif.edu/article_1604_1d2af9225e628269c03d5b6d439ffcbf.pdf
ER -