Please use this identifier to cite or link to this item:
Title: ES-PIM with cell death and birth technique for simulating heat transfer in concrete dam construction process
Authors: Cheng, J.
Liu, G.R. 
Li, T.-C.
Wu, S.-C.
Zhang, G.-Y.
Keywords: Cell death and birth
Concrete dam
Numerical methods
Smoothed meshfree methods
Transient heat transfer
Issue Date: 30-Jul-2011
Citation: Cheng, J., Liu, G.R., Li, T.-C., Wu, S.-C., Zhang, G.-Y. (2011-07-30). ES-PIM with cell death and birth technique for simulating heat transfer in concrete dam construction process. Journal of Engineering Mechanics 138 (1) : 133-142. ScholarBank@NUS Repository.
Abstract: The meshfree edge-based smoothed point interpolation method (ES-PIM) is extended to the simulation of transient heat transfer problems for concrete dams in the construction process. The present ES-PIM consists of the following ingredients: (1) a novel cell death and birth technique is proposed to deal with the existence or nonexistence of the concrete layers, and hence the construction process of dams can be easily simulated; (2) a lumped diagonalization procedure for specific heat matrix is implemented to improve the stability and efficiency of transient computations; and (3) the triangular background cells are used to construct the nonoverlapping smoothing integral subdomains, and the cell-based T3- and T6/3-schemes are adopted for the node selection in the formation of PIM shape functions. On the basis of the weakened weak formulation, the ES-PIM is spatially stable and convergent to the exact solution. The ES-PIM can achieve better results in accuracy and convergence rate, in comparison with the finite element method using the same meshes. © 2012 American Society of Civil Engineers.
Source Title: Journal of Engineering Mechanics
ISSN: 07339399
DOI: 10.1061/(ASCE)EM.1943-7889.0000312
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Jan 21, 2019


checked on Jan 2, 2019

Page view(s)

checked on Mar 11, 2018

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.