Design Of Waverider Configuration And Calculation Of Heating Rates On The Surface

Hypersonic technique is a new field which collect advanced technologies ofaeronautics and astronautics fields，and It has important strategic significance and highapplication value. Investigation shows that waverider have high1ift-to-drag ratio, which hasbroken the “Lift-to-drag ratio barrier” put forward by Cushman. Therefore, waverider wasseen as the ideal aerodynamic configuration for hypersonic flight vehicle.This paper has done some work on several aspects such as design and generation ofwaverider, numerical calculation of flow field, surface heat flux calculation and theaerodynamic characteristics under off-design conditions. These work provide a reference forfurther research of waverider.First, this paper compiled a generation program for a cone-derived waveriderconfiguration. Cone flow field is used here as the generating flow field, and chose shockangle, semi-spanwise angle, length-to-span ratio and function coefficient as adjustableparameters. Second, numerical simulation of Mach6waverider flying at30kilometers areconducted and it’s flow-field characteristics is analyzed. Third, the method of simulatingnumerically the inviscid flow field and predicting experientially the viscous field is usedhere to calculate the heat flux of waverider. Conclusions are obtained that the max value ofheat flux appeared in the stationary point which reaches1040.6kw/m2, and the heat fluxof windward side is higher than leeward side. At last, analysis of aerodynamiccharacteristics of waveriders under off-design conditions are conducted. The off-designconditions includes different Mach number, different attack angle, different flight altitudeand different yaw angle. Some useful conclusions are obtained.