Numerical analysis of heat conduction problems on irregular domains by means of a collocation meshless method

34th UIT Heat Transfer Conference 2016

Zamolo, R.^1 ; Nobile, E.^1

Dipartimento di Ingegneria e Architettura, Università degli Studi di Trieste, via A. Valerio 10, Trieste

34127, Italy^1

关键词: Convergence properties;    Distribution density;    Distribution process;    Heat conduction problems;    Irregular domains;    Least-squares collocation;    Numerical approaches;    Radial Basis Function(RBF);   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/796/1/012006/pdf
DOI  :  10.1088/1742-6596/796/1/012006

来源: IOP

【 摘 要 】

A Least Squares Collocation Meshless Method based on Radial Basis Function (RBF) interpolation is used to solve steady state heat conduction problems on 2D polygonal domains using MATLAB®environment. The point distribution process required by the numerical method can be fully automated, taking account of boundary conditions and geometry of the problem to get higher point distribution density where needed. Several convergence tests have been carried out comparing the numerical results to the corresponding analytical solutions to outline the properties of this numerical approach, considering various combinations of parameters. These tests showed favorable convergence properties in the simple cases considered: along with the geometry flexibility, these features confirm that this peculiar numerical approach can be an effective tool in the numerical simulation of heat conduction problems.