Additionally, a Free-Form Deformation ( FFD) procedure is used to parametrically modify existing airfoils a modified area-preserving FFD procedure can be also utilized. Standard ( NACA) and non-standard airfoils can be produced and simulated the non-standard ones are either introduced from an embedded airfoil database (containing hundreds of airfoils) or parametrically defined using a NURBS definition procedure (using an external file with the distribution of either interpolation points or control points in the two sides of the airfoil). Daedalus is an interactive software for the design & analysis of airfoils it was developed in Qt C++ by members of the Turbomachines & Fluid Dynamics Laboratory (TurboLab-TUC).
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