水下容器开启过程流场特性仿真研究

Flow characteristics simulation of the opening process of underwater container

水下容器开启过程中,海水快速灌入容器内,对载体的平衡产生较大的影响。采用Mixture多相流计算模型求解气液两相流场,网格更新方法采用域动分层法,对不同开启角度进行数值计算。结果表明:开启角度越小,容器底部压力和容器内部进水量波动越大,且峰值越大,随着开启角度的增大,两者波动范围有所减缓,研究成果可为水下容器总体设计、系统使用流程优化提供理论支撑。

During the opening of the underwater container, seawater injects into the container expeditiously, which exerts an influence on the stability of the carrier. The Mixture multiphase method was used to calculate the gas-liquid flow field, the zone moving and dynamic laying was used to update the meshes. The different opening angle conditions were simulated, the result of the simulation shows that the fluctuate of the pressure at the bottom of the container and the mass of water injecting into the container are acuter, when the openning angle is smaller, as well as the peak valve. With the increase of the opening angle, the fluctuate becomes gentle. The research can provide theoretical support for the design of underwater container and the optimization of the process.