Airfoils.Pro
database / Other families / dh4009sm
OTHER FAMILIESSELIG-DATABASESYMMETRIC

dh4009sm

Symmetric · 9% thick · low-to-mid Re
Compare↓ Download
PROFILEdh4009sm
surfacecamber line
GEOMETRY · AREA METRICS
max thickness8.9% @ 42%c
max camber0.2% @ 10%c
LE radius0.88%c
area upper / chord0.0310
area lower / chord-0.0294
area camber / chord0.0008
TE thickness0.03%c
DOWNLOAD COORDINATES

Polars

Preliminary
NeuralFoil
-0.7157-50.11763.3330.95111.671.78420ClAngle of attack (°)
Why this curve

This is a NeuralFoil prediction from the stored profile coordinates and the selected flow condition, with AeroSandbox compressibility corrections. It is not a completed OpenFOAM calculation.

Prediction error has not been calibrated for this condition. No accuracy interval is claimed.

Geometry fit: RMS error 0.02732% of chord; maximum error 0.1153%.

NeuralFoil 0.3.3 · AeroSandbox 4.2.10

Curve summary

NeuralFoil · Within -5° to 20°

Maximum lift / drag
109.8
Angle at maximum lift / drag (°)
9
Minimum Cd
0.006555
Maximum Cl
1.576
Angle at maximum Cl (°)
16
Cd at zero lift
0.006565
Cm at zero angle
-0.01388
CFD points
SOLVER WORK0 conditions · 0 engine jobs
Loading solver work…