论文标题
关于多组分和多相压缩流的模拟
On the simulation of multicomponent and multiphase compressible flows
论文作者
论文摘要
以下论文介绍了可压缩的两相或多组分流的两种仿真策略。一个是一个完整的非平衡模型，其中压力和速度通过数值弛豫过程在接口处朝着平衡驱动，第二个是一个四方程模型，它假设相位或组分之间的僵硬的机械和热平衡。在这两种方法中，每种流体的热力学行为均根据状态的僵硬的气体方程式独立建模。提出的方法用于模拟一维近似下含有纯Co $ _2 $液体和蒸气的管道的去压力化。
The following paper presents two simulation strategies for compressible two-phase or multicomponent flows. One is a full non-equilibrium model in which the pressure and velocity are driven towards the equilibrium at interfaces by numerical relaxation processes, the second is a four-equation model that assumes stiff mechanical and thermal equilibrium between phases or components. In both approaches, the thermodynamic behaviour of each fluid is modelled independently according to the stiffened-gas equations of state. The presented methods are used to simulate the de-pressurization of a pipe containing pure CO$_2$ liquid and vapour under the one-dimensional approximation.
