The Research On Hydrodynamic Characteristics Of Sharing Launched Submaring-launched Vehicle

In order to meet the requirements under the new era submarine warfare strategic context, on the basis of the traditional vertical submarine-launch technology, sharing-launch technology has become the new focus of research. In this paper, numerical simulation modeling will be used to research the Flow field characteristics and fluid dynamic characteristics of sharing-launch process, especially on the impact of the complex flow field environment made by the first vehicle on the launch of the second vehicle.First, through the analysis of numerical simulation methods, establish the use of three-dimensional numerical simulations to research the sharing-launch of Submarine-launched vehicle. And on this basis, make further elaboration and analysis on the basic theory of multiphase flow numerical calculation, build the numerical simulation model of the sharing-launch of Submarine-launched vehicle.Secondly, numerical simulation is completed on the the out tube and the process of travelling under water of the first vehicle.Then, select the typical moment of the the flow field chara-cteristics, complete the Numerical simulation of the launch of the second vehicle under different launche interval. Analysis the kinematics and dynamics,flow field characteristics and surface loads of the both vehicles. Analysis the surface loads and the pressure distribution on flow field after the the out tube process of the first vehicle.Finally, research and analysis the changes in the flow field at different times after the out tube process of the first vehicle. Select four typical moments of flow field and design simulation conditions. Complete the Numerical simulation of the launch of the second vehicle under different launche interval.Analysis the kinematics and dynamics, flow field characteristics and surface loads of the second vehicles. And comparative analysis the impact of different transmission intervals on the vertical sharing-launch process.