Transient Aero-Thermo-Mechanical Multidimensional Analysis of a High Pressure Turbine Assembly Through a Square Cycle

Abstract Better understanding and more accurate prediction of heat transfer cooling flows in aero engine components steady transient operating regimes are essential to modern designs aiming at reduced air consumption improved efficiencies. This paper presents a simplified coupled analysis methodology that allows assessment the aerothermal thermomechanical responses together with mass flow, pressure temperature distributions an automatic fully integrated way. is achieved by assembling fluid network contribution different geometrical dimensions each other through dimensionally heterogeneous interfaces. More local flow conditions, structural displacement resolved on smaller area interest multidimensional surface computational dynamics (CFD)/FE codes. Contributions whole air-system predicted faster monodimensional code. Matching conditions common interfaces enforced time-step exactly employing efficient iterative scheme. The simulation performed industrial high turbine (HPT) disk component run square cycle. Predictions compared against available experimental data. proves reliability performance coupling technique realistic setting. results underline importance including physical details into thermal modeling components.