Efficient transient thermal analysis based on spectral element time domain method with curvilinear hexahedrons

Abstract

In this paper, a three‐dimensional transient thermal simulation algorithm based on spectral element method is proposed. This algorithm uses distorted hexahedron for mesh generation, which not only keeps the high efficiency of hexahedron element calculation, but also improves the flexibility of mesh generation. It supports efficient forward difference and unconditionally stable backward difference in time step. Through practical examples and comparison with commercial software, the reliability and stability of the algorithm are verified, and it has obvious advantages in memory consumption and computing efficiency.

Electromagnetic-Thermal Analysis of FTU under the High-Power Electromagnetic Environment

“…Electromagnetic and thermal multi-physics numerical simulation algorithms [10][11][12][13][14] for complex three-dimensional (3D) ICs with power supply structures (such as PDN) or cooling structures (such as heat sink, microchannel, etc.) to provide accurate electromagnetic and temperature distribution are the focus of academic and industrial circles and also the research hot spot of the IC simulation industry [15][16][17][18][19][20][21]. However, little information regarding 3D theoretical analysis of electromagnetic-thermal phenomena inside the FTU system has been reported.…”