农业工程学报2012，Vol.28Issue(14)：52-57,封2,7.DOI:10.3969/j.issn.1002-6819.2012.14.009
离心泵气液固多相流动数值模拟与试验
Numerical simulation and experiment on gas-liquid-solid multiphase flow in centrifugal pump
摘要
Abstract
In order to study the internal solid-liquid-gas flow of centrifugal pump, Pro/E 3D modeling software was used to make geometric modeling. Based on the application of Reynolds time-average equations, two-equation turbulence model and SIMPLEC algorithm, numerical simulation were involved in studying the flow rules of the solid-liquid-gas flow media in the centrifugal pump. Comparing the calculation results, the solid volume fraction reached the maximum at 0.4 of r/R2, then sharply declined in a straight line, and were fluctuating at certain point; the gas volume fraction was small at 0.2～0.4 of r/R2, and increased sharply after 0.4 of r/R2. Solid and gas phase concentration influenced each other in the particle size distribution. The gas phase mainly gathered in the middle of the blade, which made the vortex appear in the impeller passageway. The energy exchange and transmission in the passageway were influenced the emerging vortex. Without vortex in the passageway, the solid phase moved along the surface of the impeller; and with vortex, it moved with the rotation of the vortex. The flow track was rarely influenced with the increasing of solid phase concentration increases. The research provides a reference for the further research and application of gas-liquid-solid multiphase flow.关键词
离心泵/多相流/叶轮/数值模拟/试验Key words
centrifugal pumps/ multiphase flow/ impellers/ gas-liquid-solid/ numerical simulation/ experiment分类
机械制造引用本文复制引用
付强,袁寿其,朱荣生,陈景俊,王秀礼..离心泵气液固多相流动数值模拟与试验[J].农业工程学报,2012,28(14):52-57,封2,7.基金项目
国家杰出青年科学基金(50825902),国家科技支撑计划项目(2011BAF14B04),江苏省自然科学基金项目(BK2011504),江苏高校优势学科建设工程资助项目 （50825902）
