基于OpenFOAM的三维内弹道两相流程序开发及其应用

为了克服独立编程实现内弹道两相流程序存在仿真周期长、代码复用率低以及不具备复杂计算域求解能力等缺陷,该文在开源有限体积软件(OpenFOAM)框架中开发了三维内弹道两相流求解器; 对内弹道两相流求解器正确性展开了三方面验证,即压力波捕捉能力验证、全域守恒性验证、内弹道试验验证; 对中心炸管式抛撒系统点传火过程进行了仿真分析。仿真与试验对比结果表明,该文所开发的三维求解器为内弹道问题数值分析提供了高效且具备求解复杂计算域能力的仿真工具。

Development and Application of Three-dimensional Interior Ballistic Two-phase Flow Program Based on OpenFOAM

To overcome the defects of long simulation period,low code reuse rate and lack ability of solving complex computation domain in the interior ballistic two-phase flow programs by the individual independent coding,a three-dimensional interior ballistic two-phase flow solver was developed in the open source finite volume software(OpenFOAM)framework.The correctness of interior ballistic solver was verified in three aspects,namely,pressure wave capture verification,global conservation verification,interior ballistic experimental results verification.The simulation analysis of ignition and flame-spreading process of the central tube dispersing system was carried out.The simulation result was compared with experiment result.The result shows that the 3D interior ballistic solver developed in this paper provides an efficient simulation tool for numerical analysis of interior ballistic problems with the ability to solve complex computational domains.