ONERA M6 Wing. Transonic Grid Convergence Study

Fundamental
ONERA M6 Wing — Flow360 validation

The ONERA M6 wing is a canonical transonic CFD validation case: a 30-degree swept, semi-span wing with a symmetric ONERA D airfoil section that develops a characteristic lambda shock on the upper surface, supported by classical wind-tunnel data and a multi-code NASA TMR grid-convergence study. Conditions are Mach 0.84, Reynolds number 11.72 million based on mean aerodynamic chord, and 3.06 degrees angle of attack. Four mesh refinement levels (coarse through extra-fine) are taken from the NASA Turbulence Modeling Resource ONERA M6 grid family and solved with the Spalart-Allmaras turbulence model. Grid convergence of integrated forces is assessed against reference CFD results. Surface pressure and skin friction distributions are compared against reference CFD data (FUN3D) and experiment.

External reference data
Validation plots

Comparison of Flow360 predictions against reference data. Click an image to expand.

CL Grid Convergence
CL Grid Convergence
CD Grid Convergence
CD Grid Convergence
Cp at Span Stations
Cp at Span Stations
Cf at Span Stations
Cf at Span Stations
Solver performance

Request access to see total solution time and cost for all benchmark cases.