This paper presents a comprehensive study on the design optimization and aerothermodynamic analysis of a supersonic vehicle, aiming to enhance its performance and efficiency at the time of re-entry. The distribution of heat over the body can be influenced by varying the shock stand-off distance and intensity over supersonic objects. In this paper, we have modified the blunt body by keeping the double hemispherical disk in the front which will increase the shock stand-off distance and lower the intensity of the shock waves at Mach six. The turbulent module transport equation was used to solve the blunt body with double disk along with Reynolds Navier stoke Equation, according to the aerodynamic performance of the double disk. According to this research analysis, the aero-disk performance is better than the aerospike.