黄磷冷凝塔气-液两相流场数值模拟

以计算流体力学(CFD)为基础,在三维坐标系下采用κ-ε标准湍流模型、传热模型求解流场温度及速度,采用Lagrange模型追踪粒子轨迹,对冷凝塔内流场情况进行分析。结果表明,不同高度气体的速度、温度分布均不相同,喷淋水使气体的分布情况变得更为复杂。在塔内气体温度与速度变化趋势相同,水滴的运动受气体流动影响。模拟结果对黄磷冷凝塔的改进有一定的参考价值。

Numerical Simulation of Gas-liquid Cooling Tower for Phosphorus Production

With computational fluid dynamics(CFD) as the foundation,κ-ε standard turbulence model and heat transfer model is employed to solve the gas’s velocity and temperature in a three-dimensional coordinate system and the Lagrange model is used to trace the particles trajectories.Analysis of flow field in spray tower shows that distribution of gas velocity and temperature in different height is different and at the same time the spray water makes distribution of gas more complicated.In the tower gas temperature and velocity has the same change trend and the movement of water is influenced by gas flow.The simulation results can be used to guide the technological transformation of phosphorus production.