Results 51 to 60 of about 628,564 (131)
Numerical investigation of tip geometry on the tip-clearance flow features of a pump-jet propulsor [PDF]
, 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
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Chronic high vibration issue of a Condensate Pump [PDF]
, 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
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Abrasive Wear In Pumps - A Tribometric Approach To Improve Pump Life
, 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
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Power Pump Valve Dynamics [PDF]
, 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
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The importance of the knowledge of flow stream in water sump pump [PDF]
, 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
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Study on noise reduction of pump-jet propulsors based on porous media stator leading edges
Zhongguo Jianchuan YanjiuObjectiveTo suppress hydrodynamic noise at the source, a noise reduction method for pump-jet propulsors based on porous media is proposed.MethodsBy replacing the metallic leading edges of the stator blades of the pump-jet propulsor with porous materials,
Jianguo ZHENG, Hao WEN, Yijun MAO
doaj +1 more source
Experimental evaluation of pumpjet propulsor for an axisymmetric body in wind tunnel
International Journal of Naval Architecture and Ocean Engineering, 2010 Design of a Pump Jet Propulsor (PJP) was undertaken for an underwater body with axisymmetric configuration using axial flow compressor design techniques supported by Computational Fluid Dynamics (CFD) analysis for performance prediction.
Ch. Suryanarayana +3 more
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Zhongguo Jianchuan YanjiuObjectiveUnsteady forces generated by pump-jet rotors are a key factor affecting the vibration and noise levels of underwater vehicles. These forces not only induce structural vibrations through coupling between the propeller, shafting, and hull systems,
Wanghao TANG, Junjie XU, Xiuchang HUANG
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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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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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