Results 21 to 30 of about 629,952 (70)

End-User's Guide To Centrifugal Pump Rotordynamics [PDF]

open access: yes, 2014
TutorialThis tutorial outlines the basics of pump rotordynamics in a form that is intended to be Machinery End User friendly. Key concepts will be defined in understandable terms, and analysis and testing options will be presented in summary form.
Marscher, William D., Marscher, Bill
core   +1 more source

Simulation and Experimental Study of a Synthetic Jet Valveless Pump [PDF]

open access: yes, 2020
A valveless microfluidic pump using a lead zirconate titanate (PZT) diaphragm actuated synthetic jet is developed and fabricated. For this present design, a valveless pump structure is developed in which the pump chamber is sealed on one side and ...
Lam Bao Dang   +18 more
core   +1 more source

Micro-jet pump for micro-fluidic systems [PDF]

open access: yes, 2006
A novel micro-jet pump based on the principle of macroscopic jet pump are presented. The micro-jet pump can be used very easily for sampling in micro-fluidic systems under gas actuation.
Yu XM   +4 more
core   +1 more source

Abrasive Wear In Pumps - A Tribometric Approach To Improve Pump Life

open access: yes, 1996
Tutorialpg. 143The reduction of abrasive wear and extension of the endurance of pumps requires a system analysis. Various pump types demonstrate different tribological systems under abrasive wear, which are basically dominated by sliding, jet, and ...
Wirth, Wolfgang   +2 more
core   +1 more source

Experimental and Numerical Analysis of the Flow Inside a Configuration Including an Axial Pump and a Tubular Exchanger [PDF]

open access: yes, 2010
In centrifugal and axial pumps, the flow is characterized by a turbulent and complex behavior and also by physical mechanisms such as cavitation and pressure fluctuations that are mainly due to the strong interactions between the fixed and mobile parts ...
Sofiane Khelladi   +7 more
core   +1 more source

Numerical investigation of tip geometry on the tip-clearance flow features of a pump-jet propulsor [PDF]

open access: yes, 2019
The numerical simulation for pump-jet propulsors is based on the solution of the Reynolds-Averaged Navier-Stokes (RANS) equations using a two-layer realizable k- model for turbulence closure.
Noblesse, Francis   +4 more
core   +1 more source

Entropy generation analysis of flow fields around a pump-jet propulsor mounted on SUBOFF

open access: yes
A submarine's hydrodynamic performance is critical, as it directly influences its stealth, maneuverability, and endurance. A numerical investigation is conducted on a SUBOFF model equipped with a pump-jet propulsor (PJP) under varying inflow velocities ...
王一伟   +10 more
core   +1 more source

The importance of the knowledge of flow stream in water sump pump [PDF]

open access: yes, 2013
Numerous different experimental and numerical methods have been developed and are already improved in order to get rather good flow descriptions inside pump components. These calculations are generally realized assuming uniform and steady flow conditions,
SIMONET, Sophie   +3 more
core  

Chronic high vibration issue of a Condensate Pump [PDF]

open access: yes, 2022
Case StudiesChronic high vibration issue was being observed on a critical condensate pump. Although this motor driven pump is a standby unit, however, in case the running pump has a breakdown and the motor pump is unavailable, the Ammonia Plant will trip.
Bukhari, Syed M. Haseeb   +1 more
core   +1 more source

Power Pump Valve Dynamics [PDF]

open access: yes, 2009
LectureThe dynamics (movement) of the check valves in a reciprocating power pump determine whether the pump will operate quietly and smoothly, or noisily with pulsation and vibration.
Henshaw, Terry
core   +1 more source

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