Results 51 to 60 of about 3,633,157 (186)

A CFD parametric study of geometrical variations on the pressure pulsations and performance characteristics of a centrifugal pump. [PDF]

open access: yes, 2009
Pressure pulsations may be troublesome during the operation and performance of centrifugal pumps. Such pressure pulsations have traditionally been investigated experimentally but numerical analysis techniques allow these effects to be explored. The multi-
Amaral Teixeira, Joao, Spence, R.
core   +1 more source

Numerical Simulation and Experiment of the Effects of Blade Angle Deviation on the Hydraulic Characteristics and Pressure Pulsation of an Axial-Flow Pump

open access: yesShock and Vibration, 2021
Inadequate blade angle adjustment or manufacturing errors will cause inconsistencies in the blade angle of an axial-flow pump. In this study, the hydrodynamic characteristics of an axial-flow pump with inconsistent blade angle are investigated by ...
Lijian Shi   +7 more
doaj   +1 more source

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]

open access: yes, 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
core   +1 more source

Development of rear‐impeller axial flow blood pump for realization of axial flow blood pump installed at aortic valve position [PDF]

open access: yesArtificial Organs, 2019
AbstractIn this study, rear‐impeller axial flow blood pumps (RIAFBP) were developed to realize a trans‐valve axial ventricular assist device (VAD) which consists of the latter blood pump and a polymer monomembrane aortic valve, such as the jellyfish valve.
Eiji Okamoto   +5 more
openaire   +3 more sources

Research on bionic pulsation of axial flow blood pump based on LSTM

open access: yes四川大学学报. 自然科学版, 2022
The micro axial blood pump is one of the most commonly used ventricular assist devices in clinical practice. The axial flow blood pump bionic pulsation device was built to solve the problem that the constant flow assistance does not meet the ...
LUO Yao-Jun, HU Xiao-Bing, WEI Shang-Yun
doaj  

Influence of guide vanes on the flow fields and performance of axial pump under unsteady flow conditions: Numerical study

open access: yesJournal of Mechanical Engineering and Sciences, 2020
Influence of different guide vanes on structural of flow field and axial pump performance under unsteady flow is carried out using numerical method. A three-dimensional axial flow pump model is numerically simulated using computational fluid dynamics ...
Ahmed Ramadhan Al-Obaidi
doaj   +1 more source

Analysis of internal flow characteristics and structure optimization of vertical submersible axial flow pump device

open access: yesAdvances in Mechanical Engineering, 2022
In order to investigate the internal flow characteristics and hydraulic stability of vertical submersible pump station in forward and reverse operation, the steady and unsteady three-dimensional numerical simulation of vertical submersible axial-flow ...
Fan Yang   +5 more
doaj   +1 more source

Flow Field Investigation For A Series Of Right Angle Minimum Axial Depth Pump Intakes

open access: yes, 1985
Special Paperpg. 93A series of right-angle pump intakes, incorporating minimum axial depths and decelerating flows, has been experimentally evaluated using an air flow test procedure.
Hermann, Paul, Howard, Joseph H. G.
core   +1 more source

Cavitation Tests on an Axial Flow Pump

open access: yesBulletin of JSME, 1959
Cavitation tests on an axial flow pump were made over a wide range of operating conditions. Through these tests, the aspects of cavitation in the impeller were observed with a strobolight and variation of the pump characteristics was studied. A parameter σs to represent the suction condition was introduced to give the cavitation limits for any flow ...
HORIE, Chikanobu, KAWAGUCHI, Kyoji
openaire   +2 more sources

Multilayer Impedance Pump: A Bio-Inspired Valveless Pump with Medical Applications [PDF]

open access: yes, 2007
This thesis introduces the concept of multilayer impedance pump, a novel pumping mechanism inspired from the embryonic heart structure. The multilayer impedance pump is a composite two-layer fluid-filled elastic tube featuring a thick, gelatin-like ...
Loumes, Laurence
core   +1 more source

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