Hypersonic Waveriders Aerodynamic Performance Studies

Aerodynamic performance of hypersonic waveriders aircraft basing on cone-derived waveriders with the consideration of volumetric efficient and thermal protection is being studied by computational fluid dynamic(CFD) and wind tunnel experiment(WTE).Both the results from CFD and WTE proved that,waveriders with design condition Mach number 6 and attack angle 4°,at off-design conditions that Mach number vary within 5～7,attack angle vary within 4°～6°,it can maintain excellent aerodynamic performance.The lift-to-drag ratio is only a little below 4.At the same time,a simple viscous drag analysis method basing on reference temperature method is being given to cooperate using the results of CFD and WTE.It can be used to give viscous drag that can not be got from WTE directly,and it can be used to validate viscous drag of CFD,which is hard to be calculated accuracy too.Though it is very coarse,it is very useful for engineer application.