Research Fellows
Ilias Vasilopoulos
Early Stage Researcher 11 at Rolls-Royce Deutschland
The RRD in-house morpher was tested on 4 cases (i.e. Nozzle Guide Vane with/without fillets and a trailing edge cooling slot feature, Turbine Rotor Blade with/without fillets and a squealer feature), as shown in the figure below. For each case, the initial blade (in grey) comes with a prescribed displacement field which, if applied to the initial geometry, leads to the final shape of the blade (in blue). Although the prescribed deformation is considered to be quite large, the linear elasticity morpher manages to converge without producing any negative volumes. In order to preserve the quality of the mesh in the tip gap region of the rotor cases, a sliding capability has been implemented into the code, as well as radius constraints to retain the hub and tip nodes on the corresponding surface of revolution, as demonstrated in deliverable 54 D6.6.
