Rocket-Based Combined-Cycle Engine Integration on an Osculating Cone Waverider Vehicle

Anaerodynamicmodelforarocket-basedcombined-cycleengine-airframeintegratedvehicleusinganosculating conewaveriderforebody ispresented.Emphasisisplaced onthehypersonicportionofthevehicletrajectory,where scramjet operation occurs. An analytical model for the compression e owe eld in the engine is developed, validated, and incorporatedinto a e nite-ratechemistryenginemodel forhydrogenand air. Issuesofoff-designMach number, angle of attack, and performancethrough a trajectory areaddressed for a nonoptimal example vehicle. Theresults show that the aerodynamic performance of this class of engine-airframe integrated vehicle can be rapidly solved and incorporated into a vehicle design and trajectory code.

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