scholarly journals A One-Dimensional Flow Analysis for the Prediction of Centrifugal Pump Performance Characteristics

2013 ◽  
Vol 2013 ◽  
pp. 1-19 ◽  
Author(s):  
Mohammed Ahmed El-Naggar
1975 ◽  
Vol 189 (1) ◽  
pp. 557-565 ◽  
Author(s):  
A. Whitfield ◽  
F. J. Wallace

A procedure to predict the complete performance map of turbocharger centrifugal compressors is presented. This is based on a one-dimensional flow analysis using existing published loss correlations that were available and thermodynamic models to describe the incidence loss and slip factor variation at flow rates which differ from the design point. To predict the losses within the complete compressor stage using a one-dimensional flow procedure, it is necessary to introduce a number of empirical parameters. The uncertainty associated with these empirical parameters is assessed by studying the effect of varying them upon the individual losses and upon the overall predicted performance.


2013 ◽  
Vol 444-445 ◽  
pp. 390-394
Author(s):  
Yong Shang ◽  
Xiao Bing Liu ◽  
Xue Jun Yu

By using the FINE software developed by NUMECA Company, the hydraulic performance of the impeller of a centrifugal pump with spatial guide vanes was numerically simulated. The S-A turbulent model was used to numerically calculate the three-dimensional flow field in the centrifugal pump under three different conditions. The flow analysis shows that the pressure gradient on the vane surface gradually reduces with the increasing of the flow rate; the position of axial vortex between vanes has nothing to do with the flow rate; the tangential flow gradient in the flow passage decreases with the increasing of the flow rate. Compared with the test results, it is obvious that this numerical simulation can accurately predicate the complicated three-dimensional flow and the hydraulic performance of the pump.


1968 ◽  
Vol 90 (2) ◽  
pp. 106-110 ◽  
Author(s):  
A. H. Stenning ◽  
C. B. Martin

A one-dimensional analysis of air-lift pump performance in shallow water has been developed which includes the effects of friction and slip between the gas and the liquid. The theory predicts the performance characteristics of these devices successfully, and explains the empirical design rules recommended in earlier publications.


2015 ◽  
Vol 105 ◽  
pp. 270-275 ◽  
Author(s):  
Rakibuzzaman ◽  
Sang-Ho Suh ◽  
Kim Kyung-Wuk ◽  
Hyung-Ho Kim ◽  
Min Tae Cho ◽  
...  

1982 ◽  
Vol 104 (4) ◽  
pp. 782-787 ◽  
Author(s):  
Hideaki Kosuge ◽  
Takane Ito ◽  
Keiichi Nakanishi

In order to understand the characteristics of an impeller independently, it is necessary that the impeller is tested without a diffuser. Using this method, the surge may be caused either by the inducer stall or impeller stall. Two types of impellers, with different inducer blade-to-blade shape, were employed to investigate the critical condition of stall and surge. Employing a one-dimensional-flow analysis within the impeller, various parameters for stall and surge were investigated. In this study, the relative velocity reduction between the inlet and throat of the inducer, and between the inlet and exit of the impeller were examined in comparison with the inducer throat Mach number.


ASAIO Journal ◽  
1997 ◽  
Vol 43 (5) ◽  
pp. M781 ◽  
Author(s):  
JOSEPH P. VERES ◽  
LEONARD A. R. GOLDING ◽  
WILLIAM A. SMITH ◽  
DAVID HORVATH ◽  
ALEXANDER MEDVEDEV

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