CFD/CSD Approach to Predict Hypersonic Aerothermoelastic Response of a Wing

A coupling numerical simulation technology which combined computational fluid dynamics (CFD) method with computational structure dynamic (CSD) is developed. The aerodynamic heating is calculated using CFD method. The thermo-structural response is calculated using CSD method. The thermal modal under aerodynamic heating is simulated and the influence of aerodynamic heating is discussed. The strategy of CFD/CSD approach used to simulate the aerothermoelastic response phenomenon is introduced. The simulation results indicate that aerodynamic heating obviously change the vibration mode of the wing. The contrast between normal temperature and high temperature response of a hypersonic wing under aerodynamic exciting is shown. The computed results indicate that aerothermoelasticity simulation using CFD/CSD approach is feasible and credible.