考虑气相影响的塔板流速场模拟

• 作 者: 刘春江 袁希钢 余国琮 朱晓京
• 机 构: 天津大学化学工程研究所，国家重点精馏分离实验室!天津300072,天津大学化学工程研究所，国家重点精馏分离实验室!天津300072,天津大学化学工程研究所，国家重点精馏分离实验室!天津300072,天
• 出 处: 化工学报
• 发表日期: 1998年04期
• 关键词: 塔板 流速场 气液两相流 计算流体动力学 液层 湍动 双流体模型 湍流模型 堰高 空塔气速

The vapor phase passing through the flowing liquid on a distillation tray exerts a resisting force on the liquid phase and,at the same time,enhances liquid turbulence.Both of these effects should be considered in the modeling of the Liquid velocity field.A mathematical model considering both effects isdeveloped.The comparison of the computed results with experiments shows that the proposed model is more suitable for simulating the velocity field on distillation trays than existing model.

The vapor phase passing through the flowing liquid on a distillation tray exerts a resisting force on the liquid phase and, at the same time, enhances liquid turbulence. Both of these effects should be considered in the modeling of the liquid velocity field. A mathematical model considering both effects isdeveloped.The comparison of the computed results with experiments shows that the proposed model is more suitable for simulating the velocity field on distillation trays than existing model.