UNSTEADY VELOCITY PIV MEASUREMENTS AND 3D NUMERICAL CALCULATION COMPATISONS INSIDE THE IMPELLER OF A RADIAL PUMP MODEL [PDF]
, 2013 PIV measurements were performed at mid hub section inside the impeller of a vaned diffuser pump model working with air. Several previous papers have already presented part of impeller flow characteristics mainly for vaneless diffuser and near nominal ...
PAVESI, Giorgio +5 more
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Disc Pump-Type Pump Technology For Hard-To-Pump Applications
, 2000 Lecturepg. 69This paper describes a unique pumping concept based on a noncontact mechanism operating solely using the principles of boundary layer and viscous drag.
Hanas, Peter, Pacella, John
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Numerical analysis of unsteady hydrodynamic performance of pump-jet propulsor in oblique flow
, 2019 In this study, the SST k-omega turbulence model and the sliding mesh technology based on RANS method has been adopted to simulate the exciting force and hydrodynamics of a pump-jet propulsor in different oblique flow angles (0°, 10°, 20°, 30°) and ...
Qiu, Chengcheng, Pan, Guang, Shi, Yao
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Flow control mechanisms of partially porous blade tip on tip leakage vortex in pump-jet propulsor
Large eddy simulation coupled with a porous medium model and a sliding mesh technique was employed to investigate the flow control mechanism of partially porous blade tips in a pump-jet propulsor (PJP).
Zhiyuan Yang +5 more
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Data reduction problems using a 3 holes directional pressure probe to investigate mean flow characteristics in the vaneless gap between impeller and diffuser radial pump [PDF]
, 2013 Among several different measurement techniques that have been already performed and presented in a radial impeller pump model including PIV, a directional pressure probe has been used to obtain mean velocity field and stagnation pressure between impeller
DAZIN, Antoine +4 more
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Case Study 2: High Energy Abrasive Service Pump Upgrade
, 2009 Case StudyA refining company in the gulf coast had been experiencing accelerated wear on their coke cutting jet pump resulting in major expenditure and down time on a 6-10 month cycle.
Summa, Calvin, McPherson, Scott
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Effect of Hub-to-tip Ratio on Performance of High Speed Pump-jet Propulsor for Undersea Vehicle
To investigate the influence of the hub-to-tip ratio on the high-speed pump-jet propulsors of undersea vehicles, this study took an impeller with specific speed of 1 920 as the research object and conducted numerical calculation, performance result ...
Gongchang GAN
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A new structure of Tesla coupled nozzle in synthetic jet micro-pump
, 2020 Synthetic jet pump is a potential technique to improve the pumping performance by introducing a smart structure which can enhance counter-rotating vortexes.
Nguyen, Nam-Trung +10 more
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, 2016 Case StudyCase Study 16: In the modern pump industry, processed fluids are characterized by a wide spectrum of viscosity values. An unpredicted variation of actual process fluid properties, including viscosity, may lead to unexpected pump performance ...
Cicatelli, Giancarlo, Schiavello, Bruno
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Abnormal Vertical Pump Suction Recirculation Problems Due To Pump-System Interaction [PDF]
, 2004 Lecturepg. 18It is well documented that the proper operation of vertical centrifugal pumps is greatly dependent upon the entire pump/piping system, which includes the piping geometry and the system operating conditions.
Price, Stephen M. +2 more
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