Numerical Value Simulation Of Shockwave And Infrared Radiation Problem In The Head Of Hypersonic Vehicle

The paper mainly uses hypersonic aerodynamic, high temperature aerodynamic,radiation and computational fluid dynamics to set up theory and numerical value model.It studies the aerodynamic flow fled of the high velocity vehicle’s shock1ayer and theimpact of infrared radiation on the airmanship system in the vehicle’s head by theaerodynamic flow fled and the vehicle itself.Starting from background and significance, the paper introduces the actualityhypersonic vehicle, numerical value theory, radicalization and something correlatively.It uses the commercial software (GRIDGEN) to set up the aerodynamic flow fled grid,to set up thermochemistry imbalance gas modal (two temperature, eleven gas segments)in order to solve the unsteady NS equation. It brings forward applied boundarycondition and initialization condition, setting up physical chemistry modal, numericaldispersing the control equation, choosing the different differences. The writer uses thehypersonic aerodynamic numerical program to get the aerodynamic flow fled whichincludes the gas segments, temperature, pressure, density, velocity, the wall heat fluxand temperature and so on. Using those, it can get the the aerodynamic flow fled and thevehicle itself’s infrared radiation.The writer sets up the high velocity vehicle’s infrared radiation on airmanshipoptics system modal, and gives the radiation transit equation. It sets up thethree-dimensional aerodynamic flow fled grid, the optics system primary mirror gridand the radiation grid based on the high velocity vehicle’s shape and the structure of theairmanship system in the vehicle. It sets up the model of the aerodynamic flow fled andthe vehicle itself’s infrared radiation and the second optics system mirror’ impact on theoptics system primary mirror. It investigates how to accelerate to search grid and insertnumerical value.The writer compiles program for project use aim at this problem,and get theinfrared radiation on airmanship system optics system primary mirror in the vehicle’shead by the aerodynamic flow fled and the vehicle itself. The paper discusses the impactof different flight mach numbers, flight height, inflow temperature on the numericalvalue result. At last, the paper discusses spectrum’s and the wall’s of equall temperature impact on the airmanship system optics system primary mirror in the vehicle’s head bythe aerodynamic flow fled and the vehicle itself.We know, under the paper’s condition, the main impact on the airmanship systemoptics system primary mirror is from the vehicle itself, not from the aerodynamic flowfled after we count.