The coupling analysis of heat transfer in hypersonic telescopic deformable aircraft
The deformable wings is an effective way to improve the aerodynamic performance of hypersonic vehicles to adapt to the needs of large airspace and wide speed flight.However,under the hypersonic conditions,deformable wings are subjected to severe aerodynamic heating,posing higher requirements for thermal design.Through the NNW-CAPTER hypersonic coupling analysis software,based on the two ideas of"heat flow remains stationary,structure moves"and"structure remains stationary,heat flow moves",two kinds of data transfer methods based on moving mesh technology and surface data transfer method are developed.The aerodynamic thermal heat transfer coupling simulation of telescopic wing structures is achieved.The influence of different time step selection during the telescoping process on the calculation results is compared using surface data transfer methods,and the impact of interpolation errors in different data transfer methods are analyzed during the stretching process.Finally the interpolation can be simplified based on the heat flow data at the initial and completion times of the telescoping in engineering applications when the telescoping time is short and the subsequent trajectory is long,to simplify the calculation and short the design time.
hypersonic vehiclestelescopic wingmorphing wingcouple of aerodynamic-heating and thermal transfermoving mesh
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