柱形旋流器入口结构对油水分离影响的数值模拟

摘要

The influence of inlet structure on oil - water separation in a cylindrical cyclone is simulated in this paper. The algebraic slip model which used to simulate the relative motion between water (continuous phase) and oil (particle phase), mixture model in fluent and the RNG K - ε turbulent model are adopted using numerical simulation by Fluent software. The effeet of inlet shapes Jnlet cross - sectional shape and the height of inlet on oil - water separation characteristics in a liquid - liquid cylindrical. Cyclone have been analyzed. The numerical simulation can provide a foundation for structural optimization design of cylindrical cyclones.%通过数值模拟,分析了入口结构对油水在柱形旋流器中分离性能的影响.数值模拟时,油水两相流动采用Fluent中的混合模型,相间的相对运动采用代数滑移模型,湍流影响则使用修正的RNG K -ε湍流模型.获得了入口形状、入口方式和入口位置对柱形旋流器油水分离性能的影响.这些结果为优化柱形旋流器结构奠定了基础.