Interference Effects of Different Combustion Gas Lateral Jets on Supersonic Cone-Cylinder-Flare
The study investigates the side-jet interference effects of different propellant gases on a Cone-Cylinder-Flare shape by solving the three-dimensional RANS equations.The reliability of the numerical method was validated using the results of hot jet interference experiments under supersonic conditions.The numerical simulations modeled the side-jet interference flow fields of different gas jet interference flow fields,comparing the distribution of wall pressure difference coefficients,force interference factors,and shift value of jet force center.The research indicates that under the wind tunnel inflow temperature conditions of this paper,the influence of afterburning can be neglected.Without chemical reactions,as the jet temperature decreases,the shift value of jet force center decreases,and the reduction is more signifi-cant under negative angle of attack conditions.For the different combustion gas jets with same static tem-perature,the distribution of wall pressure difference coefficients,force interference factors,and shift value of jet force center show little difference.The influence of afterburning on the interference effects of differ-ent gas jets is consistent,with the magnitude of influence being close.Under most angle of attack condi-tions,afterburning reduces the magnitude of the shift value of jet force center,and the reduction is greater under negative attack angle.
supersonic flowcombustion gas jetlateral-jet interferenceafterburning effectnumerical simulation
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