Results 41 to 50 of about 271,894 (285)
Dynamic Analysis of Cavitation Tip Vortex of Pump-Jet Propeller Based on DES
Applied Sciences, 2020 When a pump-jet propeller rotates at high speeds, a tip vortex is usually generated in the tip clearance region. This vortex interacts with the main channel fluid flow leading to the main energy loss of the rotor system.
Jianping Yuan +6 more
doaj +1 more source
Research on Vertical SEC Centrifugal Pump Multi-Fault Diagnosis Based on WPT–SVM
Energies, 2023 To diagnose common failures in vertical Essential Service Water Pumps (SEC), a method combining the wavelet packet transform (WPT) and the support vector machine (SVM) was adopted.
Rongsheng Zhu +6 more
doaj +1 more source
Mathematics, 2020 Rotor-stator interaction (RSI) in the centrifugal pump-as-turbine (PAT) is a significant source of high amplitude of the pressure pulsation and the flow-induced vibration, which is detrimental to the stable operation of PAT. It is therefore imperative to
Jian Xu +4 more
doaj +1 more source
Shock and Vibration, 2022 Through numerical simulations, this work analyzes the unsteady pressure pulsation characteristics in new type of dishwasher pump with double tongue volute and single tongue volute, under volute static and rotation conditions.
Jinfeng Zhang +5 more
doaj +1 more source
Research on the Hydrodynamic Noise Characteristics of a Mixed-Flow Pump
Journal of Marine Science and Engineering, 2023 This study presents a comprehensive investigation of the internal noise characteristics of a mixed-flow pump by combining computational fluid dynamics (CFD) and computational acoustics. The turbulent flow field of the pump is simulated using the unsteady
Qiaoyue Yang +6 more
doaj +1 more source
The Non-intrusive Detection of Incipient Cavitation in Centrifugal Pumps [PDF]
This thesis investigates methods for the detection of incipient cavitation in centrifugal pumps. The thesis begins by describing the working of the centrifugal pump which makes this type of pump particularly prone to cavitation.
Al Thobiani, Faisal
core +3 more sources
Deep Learning-Based Intelligent Fault Diagnosis Methods Toward Rotating Machinery
IEEE Access, 2020 Fault diagnosis of rotating machinery plays a significant role in the industrial production and engineering field. Owing to the drawbacks of traditional fault diagnosis methods, such as heavily dependence on human knowledge and professional experience ...
Shengnan Tang, Shouqi Yuan, Yong Zhu
doaj +1 more source
Intelligent Fault Diagnosis of Hydraulic Piston Pump Based on Wavelet Analysis and Improved AlexNet
Sensors, 2021 Hydraulic piston pump is the heart of hydraulic transmission system. On account of the limitations of traditional fault diagnosis in the dependence on expert experience knowledge and the extraction of fault features, it is of great meaning to explore the
Yong Zhu +5 more
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen +23 more
wiley +1 more source
Ewing Sarcoma in Infants and Children Under 2 Years of Age: A French Retrospective Study
Pediatric Blood &Cancer, EarlyView.ABSTRACT Ewing sarcoma, the second most common primary bone cancer in children, requires intensive treatment that may lead to significant long‐term sequelae, particularly in infants. We retrospectively analyzed data from 1621 French patients treated between 1988 and 2015 within the EW88/93/97 or EE99 trials, focusing on 17 infants diagnosed before 24 ...
Elodie Verdier +18 more
wiley +1 more source