Robust mesh generation for electromagnetic models with geometric defects through node alignment and mesh boolean...

Area of Science:

• Computational electromagnetics
• Geometric modeling
• Mesh generation

Background:

• Electromagnetic models often suffer from geometric imperfections during design.
• These issues include surface leakage, interpenetrations, and gaps, complicating mesh generation.
• Existing methods struggle to reliably repair these defects.

Purpose of the Study:

• To develop a fault-tolerant mesh repair algorithm for electromagnetic models.
• To address common geometric imperfections and improve mesh quality.
• To ensure compatibility and watertightness of generated meshes.

Main Methods:

• Utilizes an enhanced bidirectional alignment for global surface mesh operations.
• Employs a watertight repair algorithm to fix mesh leaks and degenerate triangles.
• Applies a mesh Boolean algorithm using large integer representation for assembly defects.

Main Results:

• Successfully generates compatible, watertight meshes from imperfect geometry.
• Achieves high success rates in tetrahedral filling and preserves original geometric features.
• Demonstrates superior mesh generation capabilities compared to open-source and commercial tools.

Conclusions:

• The proposed algorithm effectively repairs geometric defects in electromagnetic models.
• It enhances mesh quality, compatibility, and watertightness.
• Offers a robust and superior solution for mesh generation challenges in this domain.