高压匀质过程中油相液滴破碎的数值模拟  

Numerical Simulation of Breaking up of Oil-droplet in High Pressure Homogenization

作　　者：耿啸[1] 史岩彬[1] 常明露 董树[1] 

机构地区：[1]齐鲁工业大学机械与汽车工程学院,济南250353 [2]山东大学药学院,济南250012

出　　处：《科学技术与工程》2016年第4期65-68,共4页Science Technology and Engineering

基　　金：国家自然科学基金(21203112);济南市高校院所自主创新计划项目(201401227)资助

摘　　要：利用CFD(computational fluid dynamic)技术和PBM(population balance model)模型对高压匀质过程中油相液滴破碎的行为进行了数值模拟。得到了乳剂中油相液滴粒径大小随压力和湍流动能变化的关系,总结了粗略估计多次匀质之后液滴粒径的经验公式,并用实验对模拟结果进行了验证。结果表明,PBM模拟得到的液滴粒径随匀质压力变化的趋势与实验结果相一致,增大匀质压力获得的乳剂液滴粒径更小。The computational fluid dynamic （CFD）technology and PBM （population balance model）was applied to simulate breaking up behavior of oil-droplet in high pressure homogenization. Influence of homogeneous pressure and turbulent kinetic energy on droplet diameter was got. Empirical formula for roughly estimating droplet diameter was summarized. The simulation results was verified with experiments. The results show that, PBM can predict the oil droplet diameter in high pressure homogenization, increasing homogeneous pressure can get droplet with smallerdiameter.

关 键 词：高压匀质 计算流体力学 总体平衡模型 破碎 

分 类 号：TQ027.35[化学工程]