Results 11 to 20 of about 30,981 (205)

The use of fractal techniques for flow regime identification

International Journal of Multiphase Flow, 1991
[No abstract available]174545552Ben Mizrachi, Procaccia, Grassberger, Characterization of experimental (noisy) strange attractors (1984) Physical Review A, 29 A, pp. 975-977Feder, (1988) Fractals, , Plenum Press, New YorkGrassberger, Procaccia, Measuring
F. Franca, M. Acikgoz, R.T. Lahey, A. Clausse   +3 more
openaire   +2 more sources

Spectral method for identification of flow regimes in a Couette-Taylor annular flow [PDF]

E3S Web of Conferences
The paper presents a study of flow structure in an annular flow of the Couette-Taylor system, employing spectral analysis of moment of resistance and radial dynamic pressure pulsations. Experiments were conducted on a model featuring a single annular gap,
Miskiv Nikolay, Mamonov Valeriy, Nazarov Alexander, Serov Anatoliy, Terekhov Victor   +4 more
doaj   +2 more sources

Identification of gas-liquid flow regimes using a non-intrusive Doppler ultrasonic sensor and virtual flow regime maps [PDF]

Flow Measurement and Instrumentation, 2019
The accurate prediction of flow regimes is vital for the analysis of behaviour and operation of gas/liquid two-phase systems in industrial processes. This paper investigates the feasibility of a non-radioactive and non-intrusive method for the objective identification of two-phase gas/liquid flow regimes using a Doppler ultrasonic sensor and machine ...
Nnabuife, Godfrey, Pilario, Karl Ezra, Lao, Liyun, Cao, Yi, Shafiee, Mahmood   +4 more
openaire   +4 more sources

Wet Gas Flow Regime Identification Based on WPT and PNN

Applied Mechanics and Materials, 2011
A novel noninvasive approach to the online flow regime identification for wet gas flow in a horizontal pipeline is proposed. Research into the flow-induced vibration response for the wet gas flow was conducted, with the conditions of pipe diameter 50 mm, pressure from 0.25 MPa to 0.35 MPa, Lockhart-Martinelli parameter from 0.02 to 0.6, and gas Froude ...
Chen Quan Hua, Yan Feng Geng
openaire   +2 more sources

General regression artificial neural networks for two-phase flow regime identification

2009 International Joint Conference on Neural Networks, 2009
Supplementing the collection of artificial neural network methodologies devised for monitoring energy producing installations, a general regression artificial neural network is proposed for the identification of the two-phase flow that occurs in the coolant channels of boiling water reactors.
Tatiana Tambouratzis, Imre Pázsit
openaire   +2 more sources

Sparse Sensing and DMD-Based Identification of Flow Regimes and Bifurcations in Complex Flows [PDF]

SIAM Journal on Applied Dynamical Systems, 2017
We present a sparse sensing framework based on Dynamic Mode Decomposition (DMD) to identify flow regimes and bifurcations in large-scale thermo-fluid systems. Motivated by real-time sensing and control of thermal-fluid flows in buildings and equipment, we apply this method to a Direct Numerical Simulation (DNS) data set of a 2D laterally heated cavity.
Boris Kramer, Piyush Grover, Petros Boufounos, Saleh Nabi, Mouhacine Benosman   +4 more
openaire   +3 more sources

Plug Regime Flow Velocity Measurement Problem Based on Correlability Notion and Twin Plane Electrical Capacitance Tomography: Use Case

Sensors, 2021
In this paper, the authors present the flow velocity measurement based on twin plane sensor electrical capacitance tomography and the cross-correlation method.
Volodymyr Mosorov, Grzegorz Rybak, Dominik Sankowski   +2 more
doaj   +1 more source

Flow Regime Identification using Machine Learning and Local Conductivity Measurements

, 2023
The accurate identification of flow regimes in multiphase flow systems is of paramount importance in many engineering applications. This thesis explores the significance of flow regime identification using neural networks, specifically employing a self ...
Charie anatole Tsoukalas (17522943)
core   +1 more source

Evaluation of flow pattern recognition and void fraction measurement in two phase flow independent of oil pipeline’s scale layer thickness

Alexandria Engineering Journal, 2021
The main objective of the present research is to combine the effect of scale thickness on the flow pattern and characteristics of two-phase flow that is used in oil industry. In this regard, an intelligent nondestructive technique based on combination of
Mohammadmehdi Roshani, Giang T.T. Phan, Peshawa Jammal Muhammad Ali, Gholam Hossein Roshani, Robert Hanus, Trung Duong, Enrico Corniani, Ehsan Nazemi, El Mostafa Kalmoun   +8 more
doaj   +1 more source

Severe Slugging Flow Identification from Topological Indicators

, 2022
In this work, a topological data analysis pipeline was used to identify the onset of severe slug flow in offshore petroleum production systems. Severe slugging is a multiphase flow regime known to be very inefficient and potentially harmful to process ...
Simone, Casolo
core   +1 more source