Simulation of heat conduction problems in layered materials using the meshless singular boundary method

2019 ◽  
Vol 100 ◽  
pp. 88-94 ◽  
Author(s):  
Bin Zheng ◽  
Ji Lin ◽  
Wen Chen
Author(s):  
Karel Kovářík ◽  
Juraj Mužík

This work focuses on the derivation of the local variant of the singular boundary method (SBM) for solving the advection-diffusion equation of tracer transport. Localization is based on the combination of SBM and finite collocation. Unlike the global variant, local SBM leads to a sparse matrix of the resulting system of equations, making it much more efficient to solve large-scale tasks. It also allows solving velocity vector variable tasks, which is a problem with global SBM. This paper compares the results on several examples for the steady and unsteady variant of the advection-diffusion equation and also examines the dependence of the accuracy of the solution on the density of the nodal grid and the size of the subdomain.


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