Closure to “Discussions of ‘Optimum Design of Water Jet Pumps’” (1969, ASME J. Eng. Power, 91, pp. 137–140)

1969 ◽  
Vol 91 (2) ◽  
pp. 140-141
Author(s):  
J. R. Cairns ◽  
T. Y. Na
Keyword(s):  
Optimum Design ◽  
Water Jet ◽  
Jet Pumps

Optimum Design of Water Jet Pumps

1969 ◽  
Vol 91 (1) ◽  
pp. 62-68 ◽  
Author(s):  
J. R. Cairns ◽  
T. Y. Na
Keyword(s):  
Optimum Design ◽  
Water Jet ◽  
Jet Pump ◽  
Analytical Work ◽  
Jet Pumps ◽  
Extensive Program

A summary of an extensive program of experimental and analytical work leading to a procedure for obtaining optimized performance of water jet-pump systems is presented. The procedure is extended to include systems involving n, series-staged ejector components operating in an optimal manner as a complete pump, pipeline, ejector unit. The theoretical, limiting performance of ejectors is established and several examples involving different design situations are shown.

CFD Investigation of Global Performance and Three Dimensional Flows in a Water-Jet Axial Flow Pump

2005 ◽  
Author(s):  
Hong Gao ◽  
Wanlai Lin ◽  
Fangming Ye
Keyword(s):  
Three Dimensional ◽  
Axial Flow ◽  
Flow Fields ◽  
Water Jet ◽  
Jet Pump ◽  
Wall Functions ◽  
Global Performance ◽  
Jet Pumps ◽  
Axial Flow Pump ◽  
Radial Loading

The purpose of the present study is to investigate the global performance and three dimensional flow fields in a water-jet pump. TASCflow software is employed to simulate the rotator-stator coupling flow field. A standard k-ε turbulence model combined with standard wall functions is used. In order to investigate the effect of a rear stator on flow fields, the flows in two water-jet pumps with and without a rear stator are studied. The CFD predicted global performances are in good agreement with the experimental results. Then the flow fields, such as the pressure distribution on the blade surfaces, the axial and tangential velocities distribution, especially the radial loading distribution are investigated at different flow rates. In addition, the effect of a rear stator and different spacing between the rotor and the stator on the global performance and the flow fields of the water-jet pump are also investigated.

Maximum suction lift of water jet pumps

2011 ◽  
Vol 25 (2) ◽  
pp. 391-394 ◽  
Author(s):  
Iran E. Lima Neto
Keyword(s):  
Water Jet ◽  
Jet Pumps
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