CFD Mesh Generation: Overview

CFD mesh generation is essential for faster, more accurate, stable, and converged solutions. There are three main grid classifications.

1) Structured: A grid where cells are arranged in a regular, ordered pattern.

2) Unstructured: A grid with no regular pattern, where cells (e.g., triangles, tetrahedra, or polyhedral) are connected arbitrarily.

3) Hybrid: A combination of structured and unstructured grids, leveraging both strengths.

The type of grid and its quality define the overall analysis. Poor-quality meshes introduce numerical errors and increase computational effort, while better-quality meshes increase convergence rate.

The "best" grid type depends on the specific CFD application, computational resources, and user expertise. In computational fluid dynamics (CFD), the choice of grid type—structured, unstructured, or hybrid—depends on the problem geometry, computational requirements, and desired accuracy.

What is the future of mesh generation in the current time, when faster turnaround of results and AI/ML applications are becoming common?