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- Title
多交界面热传导模型的数值解与参数估计.
- Authors
陈相兵; 闵心畅; 陈晨彳
- Abstract
This paper mainly studies the numerical solution and parameter estimation of a multi-interface heat conduction model. Firstly, the heat conduction equation and interface conditions are discretized to tridiagonal linear equations by using the finite di任erence method. Then a chasing method is used to obtain the numerical solution. Furthermore, a adaptive Particle Swarm Optimization (PSO) algorithm is proposed for the parameter estimation. This algorithm adopts an adaptive nonlinear decreasing adjustment strategy for the inertia factor in order not to sinking into the local extreme values prematurely and the optimization accuracy・ Finally, the performance of the proposed algorithm is compared to the standard PSO algorithm and the classical nonlinear optimization algorithms such as Active Set (AS), Interior Point (IP) and SQP by using a numerical example.
- Subjects
HEAT conduction; HEAT equation; PARAMETER estimation; MATHEMATICAL optimization; LINEAR equations
- Publication
Journal Of Sichuan University (Natural Sciences Division) / Sichuan Daxue Xuebao-Ziran Kexueban, 2022, Vol 59, Issue 5, p1
- ISSN
0490-6756
- Publication type
Article
- DOI
10.19907/j.0490-6756.2022.051002