Research On Aerodynamic Property And Launching Dynamics Of Glide Extender-range Rocket

Glide extender-range rocket is a hot project. As an important component of it,Aerodynamic property is the primary bases of ballistic curve calculation, load calculation,controlling parameter choice, the pushing force of engine choice and material choice,therefore, it is very important to researching the aerodynamic property . At the same time,because glide extender-range rocket is a middle controlling trajectory, in order to not onlyimprove the weapon accuracy but also reduce the requirement of controlling system, thetrajectory should be have adequate accuracy before starting control. So, the muzzle sinkageof rocket is researched is very necessary.Based on the theory of Computational Fluid Dynamics(CFD), the system andaerodynamic force topology of glide extender-range rocket are analyzed. The CFD theoryand technology are specific expatiated. The finite element model of multi-tail flow field isestablished. The flow field of 4 and 6 pieces of straight tails and rolling tails are numericalsimulated by Qi Reynolds-Stress turbulence model and Navier-Stockes equation. Then, thecontrol actuator structural parameter is engineering calculated, and the flow field is numericalsimulated. At last, the muzzle sinkage of rocket mechanics and effect are researched, and thechanging rule of the pitch angle, yaw angle, slope angel and offset angle are analysed. Whichis very necessary to simulation analysis on warhead sinkage.