An arbitrary order numerical framework for transient heat conduction problems

W Sun, W Qu, Y Gu, PW Li - International Journal of Heat and Mass …, 2024 - Elsevier
This paper presents an arbitrary order numerical approach for achieving highly accurate
solutions in transient heat conduction problems. In this framework, the arbitrary order Krylov …

Space–time generalized finite difference nonlinear model for solving unsteady Burgers' equations

PW Li - Applied Mathematics Letters, 2021 - Elsevier
In this study, the space–time (ST) generalized finite difference method (GFDM) was
combined with Newton's method to stably and accurately solve two-dimensional unsteady …

A novel meshless space-time backward substitution method and its application to nonhomogeneous advection-diffusion problems

J Lin, Y Zhang, S Reutskiy, W Feng - Applied Mathematics and …, 2021 - Elsevier
For time-dependent problems, a novel space-time backward substitution method is
proposed in this paper. By employing the space-time radial basis function and the space …

An overset improved element-free Galerkin-finite element method for the solution of transient heat conduction problems with concentrated moving heat sources

JC Álvarez-Hostos, Z Ullah, BA Storti, BA Tourn… - Computer Methods in …, 2024 - Elsevier
Abstract A novel Overset Improved Element-Free Galerkin-Finite Element Method (Ov-IEFG-
FEM) for solving transient heat conduction problems with concentrated moving heat sources …

Solving heat conduction problems with a moving heat source in arc welding processes via an overlap** nodes scheme based on the improved element-free …

JCÁ Hostos, B Storti, BA Tourn, VD Fachinotti - International Journal of Heat …, 2022 - Elsevier
A novel overlap** nodes scheme developed in the framework of an improved element-
free Galerkin (IEFG) formulation is introduced in order to solve the transient heat conduction …

A space-time generalized finite difference method for solving unsteady double-diffusive natural convection in fluid-saturated porous media

PW Li, JK Grabski, CM Fan, F Wang - Engineering Analysis with Boundary …, 2022 - Elsevier
In this paper, the space-time generalized finite difference scheme is proposed to effectively
solve the unsteady double-diffusive natural convection problem in the fluid-saturated porous …

A general analytical PBEM for solving three-dimensional transient inhomogeneous heat conduction problems with spatially varying heat generation

L Zhou, W Feng, C Sun, H Peng, M Cui… - … Communications in Heat …, 2022 - Elsevier
In the present work, a polygonal boundary element method (PBEM) for solving transient
inhomogeneous heat conduction problems with spatially-varying heat generation is …

A space-time generalized finite difference scheme for long wave propagation based on high-order Korteweg-de Vries type equations

F Zhang, PW Li, Y Gu, CM Fan - Mathematics and Computers in Simulation, 2025 - Elsevier
In this paper, the space-time generalized finite difference scheme is applied to solve the
nonlinear high-order Korteweg-de Vries equations in multiple dimensions. The proposed …

A novel spatial-temporal radial Trefftz collocation method for the backward heat conduction analysis with time-dependent source term

M Li, Z Fu, W Xu, CM Fan - International Journal of Heat and Mass Transfer, 2023 - Elsevier
In this paper, a novel spatial-temporal radial Trefftz collocation method (STRTCM) is
proposed to solve 2D and 3D backward heat conduction equations with time-dependent …

Fast parallel-in-time quasi-boundary value methods for backward heat conduction problems

Y Jiang, J Liu - Applied Numerical Mathematics, 2023 - Elsevier
In this paper we propose two new quasi-boundary value methods for regularizing the ill-
posed backward heat conduction problems. With a standard finite difference discretization in …