中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
机构
采集方式
内容类型
发表日期
学科主题
筛选

浏览/检索结果: 共4条,第1-4条 帮助

条数/页: 排序方式:
Effect of high negative incidence on the performance of a centrifugal compressor stage with conventional vaned diffusers 期刊论文  OAI收割
JOURNAL OF THERMAL SCIENCE, 2011, 卷号: 20, 期号: 2, 页码: 97,105
Ahti Jaatinen1; Aki Gronman1; Teemu Turunen-Saaresti1; Jari Backman1
收藏  |  浏览/下载:24/0  |  提交时间:2012/12/12
Noise Characteristics of Centrifugal Blower with Low Solidity Cascade Diffuser(Noise Reduction by means of Small Groove Located at LSD Blade Leading Tip) 期刊论文  OAI收割
JOURNAL OF THERMAL SCIENCE, 2009, 卷号: 18, 期号: 4, 页码: 321,324
Tengen MURAKAMI; Masahiro ISHIDA; Daisaku SAKAGUCHI; Yu KOBA
收藏  |  浏览/下载:22/0  |  提交时间:2013/01/09
Simulations and experimental studies of diffuser/nozzle pumps (EI CONFERENCE) 会议论文  OAI收割
4th International Symposium on Precision Mechanical Measurements, August 25, 2008 - August 29, 2009, Hefei/Jiuhua Mountain, Anhui, China
作者:  
Li W.;  Li W.
收藏  |  浏览/下载:23/0  |  提交时间:2013/03/25
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.  
A micro diffuser/nozzle pump with fins on the sidewall 会议论文  OAI收割
4th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS '07, Lyon, France, June 10, 2007 - June 14, 2007
作者:  
Li XH;  Yu XM;  Zhang DC;  Li ZH;  Xu WH
收藏  |  浏览/下载:19/0  |  提交时间:2017/06/01