Results 51 to 60 of about 30,981 (205)

Upward vertical two-phase flow local flow regime identification using neural network techniques

open access: yes, 2008
Traditionally, the flow regimes in two-phase flow are considered in a global sense. However, a local flow regime is required to understand and model the interfacial structures present in the flow.
Paranjape, Sidharth   +3 more
core   +1 more source

Time–Frequency Analysis Based Flow Regime Identification Methods for Airlift Reactors

open access: yes, 2016
The flow regime transitions in an airlift reactor were investigated based on pressure fluctuation signals. Two time–frequency analysis methods, i.e., Wigner–Ville distribution and wavelet transform, were used to extract flow regime characteristics from ...
Ying Yan (47692)   +3 more
core   +1 more source

Detection and Analysis of an Alternate Flow Pattern in a Radial Vaned Diffuser

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2020
The flow in the vaned diffuser of an aeronautical centrifugal compressor designed by Safran Helicopter Engines is analyzed through steady and unsteady pressure measurements at different rotation speeds.
Victor Moënne-Loccoz   +3 more
doaj   +1 more source

Identification of long-term high-flow regime changes in selected stations along the Danube River

open access: yesJournal of Hydrology and Hydromechanics, 2016
The aim of the paper is to study spatial and temporal changes in the magnitude, duration and frequency of high flows in the Danube basin. A hydrological series of the mean daily discharges from 20 gauging stations (operated minimally since 1930) were ...
Pekárová Pavla   +5 more
doaj   +1 more source

Monitoring Gas Void Fraction In Two-Phase Flow With Acoustic Emission [PDF]

open access: yes, 2010
The two-phase gas/liquid flow phenomenon can be encountered over a range of gas and liquid flow rates in the chemical engineering industry, particularly in oil and gas production transportation pipelines.
Addali, Abdulmajid
core  

THE ANALYSIS OF FLOOD WAVES [PDF]

open access: yesAerul şi Apa: Componente ale Mediului, 2010
The floods are an important phase of the hydrologic regime. Based on both genetically and influential factors, it can be identified several types of floods.
Pandi Gavril
doaj  

Mechanically anchored wavelet–neural vibrometry for suction-line flow regime discrimination in gas–liquid centrifugal pump system

open access: yesDigital Chemical Engineering
Two-phase gas–liquid mixtures at the suction line of centrifugal pumps can induce flow-induced vibration (FIV), compromising hydraulic stability, accelerating mechanical degradation, and reducing operational reliability.
Andrey Putra Wijayanto   +2 more
doaj   +1 more source

Detection of changes in flow regime of rivers in Poland

open access: yesJournal of Hydrology and Hydromechanics, 2018
The aim of this study is to detect changes in flow regime of rivers in Poland. On the basis of daily discharges recorded in 1951-2010 at 159 gauging stations located on 94 rivers regularities in the variability of the river flow characteristics in the ...
Wrzesiński Dariusz, Sobkowiak Leszek
doaj   +1 more source

Flow regime identification and volume fraction prediction in multiphase flows by means of gamma-ray attenuation and artificial neural networks

open access: yes, 2010
This work presents a new methodology for flow regimes identification and volume fraction predictions in wateregaseoil multiphase systems. The approach is based on gamma-ray pulse height distributions (PHDs) pattern recognition by means the artificial ...
SALGADO, César Marques   +3 more
core  

Flow Regime Identification in a Bubble Column via Nuclear Gauge Densitometry and Chaos Analysis

open access: yes, 2011
The Bubble Column Performance Can Change Significantly as a Result of Flow Regime Change. Since Reactor Volume Productivity, Mass and Heat Transfer as Well as Mixing Are Affected by the Prevailing Flow Regime, It is Very Important to Know How to Identify
M. Al-Dahhan   +5 more
core   +1 more source

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