Lateral control jet systems are replacing conventional deflectable aerodynamic surfaces for controlling missile or rocket lateral maneuver. The effectiveness of lateral jets is strongly influenced by the interactions between the jet and free stream. The lateral thrust amplifications are produced by these interactions. Accurate analysis of jet induced separation is very important because thrust amplifications are keyed to ability to predict jet induced separation correctly. The sensitivity of such predictions depends on turbulence modeling details.
In the present thesis, Navier-Stokes equations coupled turbulent models with compressibility correction are solved using the upwind-difference scheme for convection terms and LU-SGS schemes for temporal integration with local time stepping. To verify accuracy of the computer code, the compression corner flow are calculated.
In the 2-dimensional compression corner flow, the surface pressure distributions are calculated with varied angles. The present results of surface pressure distributions are compared with Settles experimental data. The results show nearly agreement with experimental data.
In the 2-dimensional jet interaction, the surface pressure distributions are calculated and the characteristics of interaction flow field are analyzed as a function of jet total pressure ratio. The present results of surface pressure distributions, separation lengths and heights of Mach surface show better agreement with the experimental data than other numerical results.
