液化石油气船舶液货管网的动态水力数值计算

Hydraulic numerical calculation on cargo pipe network of all-freeze LPG carrier

对液化石油气船舶液货管网按液态单相流和气液两相流分别建模,将吉布斯定律运用于两相流中,得出两相平衡态下压力、温度关系,合理地将有限元理论运用到管网两相流数值模型的求解中,建立了稳定性和收敛性良好的数值模型,取得良好的计算结果,为对液化石油气船舶液货系统仿真操作培训提供了理论依据.

Mathematic models of flowing state of liquid in cargo pipe network are built up and Gibbs theory is exerted to twophase flow and corresponding function between pressure and temperature is deduced. Finite element theory is applied to mathematic model of twophase flow and expected result is obtained.