我建议看南汽A or NASA airfoil geometries which are free to download. You will need to import the geometry as a DXF into your CAD program. I would also research which geometries provide the lift and CFD properties you are looking for. You can model the Chamber curve in CAD using the Helix or Spiral Curve geometry tool in Solidworks or if your running Autodesk Products it is referred to as a helix
