# CFD mesh independence study record

Project / geometry revision:  
Solver and physical models:  
Decision and quantities of interest:  
Boundary conditions / material data:  
Refinement strategy and characteristic mesh measure:  
Iterative convergence and conservation criteria:  

| Mesh | Cells | Characteristic size | Iterations / residuals | Conservation error | Pressure drop | Heat transfer | Max temperature | Runtime |
| --- | ---: | ---: | --- | ---: | ---: | ---: | ---: | ---: |
| Coarse |  |  |  |  |  |  |  |  |
| Medium |  |  |  |  |  |  |  |  |
| Fine |  |  |  |  |  |  |  |  |

## Compare and decide

- Medium-to-fine relative change in each quantity, using the fine result as denominator:
- Iterative error compared with the mesh-induced change:
- Local fields and wall-region resolution inspected:
- Separate time-step study for transient calculations:
- Required accuracy relative to the design decision margin:
- Chosen mesh, cost, limitations, and further refinement needed:

Do not use a single percentage as universal proof of mesh independence. If reporting observed order or a grid convergence index, document the refinement ratio, solution sequence, and applicable assumptions.

Reviewer / evidence links / approval:  

The Workflow Stack · https://theworkflowstack.com/guides/cfd-mesh-independence