Title
Local knot method for 2D and 3D convection-diffusion-reaction equations in arbitrary domains.
Abstract
In this paper, a novel local knot method (LKM) is presented to solve the 2D and 3D convection–diffusion–reaction equations in arbitrary domains. Contrary to the traditional boundary knot method, the proposed scheme requires the nodes not only on the boundary but also inside the domain. For each node, we can find a local subdomain containing a certain number of neighboring nodes. Utilizing the non-singular general solution of differential operator and the known boundary conditions, a sparse linear system is established to approximate the solutions at all nodes over the physical domain. The present LKM is a local meshless method with the merits of being mathematically simple, numerically accurate and easy to large-scale computation. Two numerical examples, involving 2D and 3D complicated domains, are provided to illustrate the effectiveness and accuracy of the new methodology.
Year
DOI
Venue
2020
10.1016/j.aml.2020.106308
Applied Mathematics Letters
Keywords
DocType
Volume
Local knot method,Convection–diffusion–reaction equations,Meshless method,Non-singular general solution,Arbitrary domains
Journal
105
ISSN
Citations 
PageRank 
0893-9659
1
0.41
References 
Authors
0
3
Name
Order
Citations
PageRank
Fajie Wang111.09
Chao Wang2649.40
Zengtao Chen310.41