... turbomachinery and aircraft flows. Accordingly, in recent years a new generation of inverse shape design problem has been suggested and investigated theoretically and computationally, consisting mainly of: unsteady inverse and hybrid problems; multipoint inverse and hybrid problems; and inverse problem...

... is used as a trial‐functional. The identification of the unknown F is similar to the identification of the Lagrange multiplier. Based on the variational theory with variable domain, a variational principle for the inverse problem (given as the time‐averaged pressure over the airfoil contour...

... as a generalization of the traditional direct and inverse problems and may have various types to meet different design requirements. It provides a very broad and versatile theoretical tool for aerodynamic design and/or modification of channels, airfoils or bladings etc. The hybrid problems for S2‐flow can...