摘要
采用ANSYS Fluent对具有特殊螺旋结构的静态螺旋切割器内部氧气-水两相流动进行数值模拟,分析不同雷诺数下静态螺旋切割器内部流场的流动与压降规律。结果表明,随着雷诺数的增加,气液两相通过螺旋切割器的压降呈明显上升趋势;两相流在螺旋切割器中的压力降比水平圆管高,当雷诺数Re从800增大至26 000时,对应的静态螺旋切割器中压降与水平圆直管内压降的比值Z从130增大到260。
The internal oxygen-water two-phase flow in a static spiral cutter with special spiral structure was simulated employing ANSYS Fluent.The flow field and pressure drop characteristics inside the static spiral cutter was analyzed under different Reynolds numbers.The pressure dropping of gas-liquid two phase flow in the helical of cutter mixer showed an increase trend obviously with the increase of Reynolds number.The pressure dropping in the helical was larger than that in the horizontal circular straight tube.When Reynolds number changed from 800 to 26 000,the ratio of pressure of the spiral cutter to horizontal circular straight tube increased from 150 to 260.
作者
徐臻伟
崔政伟
袁方洋
吴璨
XU Zhen-wei;CUI Zheng-wei;YUAN Fang-yang;WU Can(Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Wuxi, Jiangsu 214122, China;School of Mechanical Engineering, J iangnan University, Wuxi , Jiangsu 214122, China)
出处
《食品与机械》
CSCD
北大核心
2018年第3期89-92,165,共5页
Food and Machinery
基金
国家自然科学基金资助项目(编号:216061097)
江苏省研究生科研创新计划(编号:KYCX17_1474)
关键词
静态螺旋切割器
气液两相流动
压降特性
数值模拟
static spiral cutter
gas-liquid two-phase flow
pressure dropping
numerical simulation
