Hydrodynamics · CFD comparison
SUBOFF · compare the mesh, choose the next run
1.72%mean absolute error · medium mesh · secondary reference table
Put numerical choices side by side.
Which mesh gives the closest resistance prediction for the studied SUBOFF hull? We ran six conditions at three mesh resolutions and compared all 18 CFD results with a published secondary table of experimental values.
The medium mesh has the lowest mean absolute error in this comparison: 1.72%, with a maximum of 3.90%. A finer mesh alone did not improve agreement.
The engineering decision
Use the comparison to focus the next investigation.
The medium mesh provides the closest reference match in this set. The difference between medium and fine results identifies where to investigate setup and mesh sensitivity before extending the study.
Method & context
The comparison covers the declared bare-hull SUBOFF configuration. Errors below are absolute percentage differences against a secondary table of published experimental values; these are not measurements performed by Archeion.
| Mesh | Mean absolute error | Maximum absolute error |
|---|---|---|
| Coarse | 12.054185% | 17.027482% |
| Medium | 1.719669% | 3.897596% |
| Fine | 5.353441% | 7.217012% |
This is a reference comparison, not a blind validation or a mesh-convergence demonstration. Verification against the primary measurement report and independence from initial-state choices remain follow-up work.
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