SDPMflut is a Python package to perform subsonic compressible aerodynamic and aeroelastic analysis on aircraft wings, using the compressible unsteady Source and Doublet Panel Method (SDPM). It is based on Unsteady Aerodynamics: Potential and Vortex Methods and subsequent publications [1-3].

SDPMflut comes with examples demonstrating how to calculate

• steady aerodynamic pressures and loads,
• unsteady aerodynamic pressures, loads and aerodynamic stability derivatives
• flutter solutions.

You can download the latest version of the software here. For installation instructions read the Readme.txt file or the user’s guide.

You can download the user’s guide here.

SDPMflut example: Lateral stability derivative calculation as a function of angle of attack for a straight tapered wing, with comparison to experimental data.

SDPMflut example: Flutter airspeed and frequency predictions for a rectangular NACA0012 wing with pitch and plunge degrees of freedom, with comparison to experimental data.

1. Subsonic source and doublet panel methods
2. Flutter calculations using the unsteady source and doublet panel method
3. Aerodynamic stability derivative calculations using the compressible source and doublet panel method