中国科学院机构知识库网格系统: Simulations and experimental studies of diffuser/nozzle pumps (EI CONFERENCE)

中国科学院机构知识库网格

Chinese Academy of Sciences Institutional Repositories Grid

Simulations and experimental studies of diffuser/nozzle pumps (EI CONFERENCE)

文献类型：会议论文


作者	Li W.; Li W.
出版日期	2008
会议名称	4th International Symposium on Precision Mechanical Measurements, August 25, 2008 - August 29, 2009
会议地点	Hefei/Jiuhua Mountain, Anhui, China
关键词	An investigation of diffuser/nozzle micropumps is presented. Numerical simulations are done using CFD program ANSYS/Flotran. The simulations show when the opening angel is small the flow in the diffuser/nozzle is steady the mass flow is increasing with the adding opening angle. But when the opening angel continues increasing the pressure grads will be bigger than zero. It means that the static pressure is gradually going up along the diverging direction. The fluid near the wall stops flowing because the velocity decreases rapidly and the dynamic pressure is not big enough to overcome the increasing of the static pressure. Finally the fluid flows reversely from the backward position of higher pressure area this makes the separation flow of fluid the diffuser is full of reverse fluid. And this results in the dropping of mass flow at last. The simulations also show that the performance of diffuser with a round inlet is better than that with a sharp inlet. The mass flow of micropumps with different opening angles different inlets are measured. The experimental results agree well with the simulations. 2008 SPIE.
收录类别	EI
源URL	[http://ir.ciomp.ac.cn/handle/181722/34030]
专题	长春光学精密机械与物理研究所_中科院长春光机所知识产出_会议论文
推荐引用方式 GB/T 7714	Li W.,Li W.. Simulations and experimental studies of diffuser/nozzle pumps (EI CONFERENCE)[C]. 见:4th International Symposium on Precision Mechanical Measurements, August 25, 2008 - August 29, 2009. Hefei/Jiuhua Mountain, Anhui, China.

入库方式： OAI收割

来源：长春光学精密机械与物理研究所

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