摘要
为研究圆盘泵内流动规律,将圆盘泵叶轮分为无叶区和叶片区。应用CFD技术对模型泵内部的流动进行数值模拟,并对速度矢量图、等值线图和压力等值线图进行分析。分析认为旋流是圆盘泵内的主要流动方式,无叶区内较大部分是低压区,在叶轮无叶区和叶片区间存在贯通流,叶片区流入无叶区的贯通流将较大角惯量传递给无叶区内的流体是圆盘泵具有良好通流能力的原因。
In order to study flow mechanism in disc pump,the CFD technology was applied to simulate the 3D flow in the model pump to acquire the distribution of absolute velocity and static pressure in bladeless zone and blade zone of impeller.Velocity vectors,velocity contours and pressure contours was analyzed.Rotational flow is considered as the main flow in the impeller.Good ability to throughflow in disc pump is attributed to low pressure in most of bladeless zone in impeller,run-through flow in in bladeless zone and blade zone of impeller,and run-through flow transfer angular momentumto flow in bladeless zone.
出处
《流体机械》
CSCD
北大核心
2010年第10期44-47,共4页
Fluid Machinery
基金
国家科技重大专项课题"深水油气田开发钻完井工程配套技术"(2008ZX05026-001-12)
关键词
圆盘泵
无叶区
叶片区
数值模拟
贯通流
disc pump
bladeless zone in impeller
blade zone in impeller
numerical simulation
run-through flow
