SCWS Common Research Model. Static and dynamic rolling aerodynamics benchmark

Aerospace
SCWS Common Research Model — Flow360 validation

The Second AIAA Stability and Control Prediction Workshop (S&CPW2) represents the industry gold standard for validating how CFD solvers predict aircraft stability-and-control behavior at low mach conditions. Built around the NASA/Boeing Common Research Model (CRM), this workshop provides a rigorous framework with both computational predictions and experimental data from NASA Langley's 12-Foot Low-Speed Tunnel. S&CPW2 is the critical proving ground for establishing best practices in predicting dynamic derivatives and forced-motion aerodynamics. This validation demonstrates the capacity of Flow360 to bridge the gap between high-fidelity physics and industrial design cycles. The benchmark targets both static and dynamic rolling aerodynamics. The static analysis covers RANS cases from 0 to 20 degrees angle of attack at Mach 0.052 and Reynolds number based on mean aerodynamic chord of 200,000. The dynamic branch runs an unsteady SA-DDES rolling case at alpha 3 degrees, Mach 0.0358, and Reynolds number 140,000 with a 5 degree sinusoidal roll amplitude. The benchamrk compares reference aerodynamic coefficients versus alpha and compares changes in Cl and Cn against time-history and roll-phase reference data.

External reference data
Key findings
Flow360 shows good agreement with experiment for both the static alpha sweep and the dynamic rolling case.
Static and dynamic cases are submitted through a fully automated workflow.
Postprocessing is handled entirely with Flow360 built in API features.
Validation plots

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

Static CN, CA, CM vs α
Static CN, CA, CM vs α
Static CL, CD vs α
Static CL, CD vs α
Dynamic time histories — 1σ
Dynamic time histories — 1σ
Dynamic CL, CN vs Δφ — 1σ
Dynamic CL, CN vs Δφ — 1σ
Solver performance
Unsteady SA-DDES simulation at α = 3°, Mach 0.0358, and Re = 140 000, with a 5° sinusoidal roll oscillation at 0.0264 Hz over 20 full cycles at 1° per time step.
Mesh resolution
37.92 M nodes
Cloud cost
405 FC
Time to solution
27.8 min
Hardware
64 × H200 GPUs
Run Settings
Simulation type
Unsteady
Time settings
7,200 steps, dt = 0.105 s