摘要
利用计算流体动力 (CFD)技术对轴流泵叶顶间隙流动进行数值模拟 ,对比分析了宽度为叶轮直径的 0% ,0 .1 % ,0 .2 %及 0 .3%四种不同间隙下轴流泵的能量特性 ,并对间隙内的速度分布情况进行了分析 .该数值模拟捕捉到了叶顶间隙的泄漏流动及泄漏涡 ,得到了比较完整的能量特性图表并与实验数据吻合 .
The numerical simulation of the flow through the blade tip clearance of axial pumps by CFD was made to explore the differences of axial pumps′ energy capability and the internal flow behavior under different clearances. The tip clearance leakage flow and leakage vortex were noticed in this numerical simulation. The results of calculated energy capability corresponded to the experimental data indicating the preciseness of the numerical simulation.
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2004年第9期36-38,共3页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
关键词
轴流泵
叶顶间隙
计算流体动力
数值模拟
泄漏流动
泄漏涡
能量特性
axial pump
blade tip clearance
CFD
numerical simulation
leakage flow
leakage vortex
energy capability
