论文部分内容阅读
用数值方法研究碟式分离机内部流场是优化其设计的重要手段。基于VOF模型、N-S方程和RNG k-ε模型,用SIMPLE算法对分离机杂质颗粒运动流场进行求解,分析了油水分离运动情况;在油水分离趋于稳定的状态下,利用Discrete Phase模型在入口处释放一定量的粒子,以追踪其运动轨迹。仿真结果表明:油水分离形成稳定的分层界面,油提纯率接近99%,在入口速度为2.5 m/s时,其分离效果最佳,除渣效率接近98%。研究结果为分离机的设计和优化奠定了基础,同时也减少了所需的试验时间和费用。
To study the flow field inside the disc separator by numerical method is an important method to optimize its design. Based on VOF model, Navier-Stokes equations and RNG k-ε model, SIMPLE algorithm was used to solve the flow field of impurity particles in the separator, and the oil-water separation motion was analyzed. When the oil-water separation tended to be stable, Release a certain amount of particles to track its trajectory. The simulation results show that the oil-water separation can form a stable layered interface with an oil purification rate of nearly 99%. When the inlet velocity is 2.5 m / s, the separation efficiency is the best, and the efficiency of slag removal is close to 98%. The results laid the foundation for the design and optimization of the separator, while reducing the required test time and expense.