Results 81 to 90 of about 36,235 (205)
Online learning to accelerate nonlinear PDE solvers: Applied to multiphase porous media flow
Artificial Intelligence in GeosciencesWe propose a novel type of nonlinear solver acceleration for systems of nonlinear partial differential equations (PDEs) that is based on online/adaptive learning. It is applied in the context of multiphase flow in porous media.
Vinicius L.S. Silva +4 more
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Analysis and optimization of a liquid-vapor thermohydraulic model [PDF]
ESAIM: Proceedings and SurveysThis work presents a simplified model of compressible multiphase fluid flow in a heated porous medium. We first introduce the model and its numerical approximation using a linearized implicit finite volume scheme.
Helluy Philippe, Lazare Gauthier
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Mechanical Behavior and Failure Analysis of Prosthetic Retaining Screws after Long‐Term Use In Vivo. Part 2: Metallurgical and Microhardness Analysis [PDF]
, 2007 Purpose: This study involved testing and analyzing multiple retrieved prosthetic retaining screws after long‐term use in vivo to: (1) detect manufacturing defects that could affect in‐service behavior; (2) characterize the microstructure and alloy ...
Al Jabbari, Youssef S. +4 more
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JIF (Jurnal Ilmu Fisika)Existing crude oil percentage prediction methods often rely on direct measurements and historical data, neglecting the coupled multiphase characteristics of oil–water–sediment systems, which limits predictive accuracy.
Jesi Pebralia +3 more
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Zero-/Low-Speed Operation of Multiphase Drive Systems With Modular Multilevel Converters
IEEE Access, 2019 Modular multilevel converter (MMC)-based AC motor drives are emerging trend-research. They ease medium-/high-voltage handling in high-power applications with reduced footprint and life-cycle costs. A known challenge concerning their operation is the zero-
Mohamed I. Daoud +5 more
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Tooth-coil wound multiphase synchronous machines
, 2018 Nowadays we are witnessing a strong growth in the full electric vehicle market. In the field of traction the requirements are low weight, small dimensions and low cost, without renouncing reliability and good performances. The high power density requirement is pushing the research towards integrated drive solutions.
openaire +2 more sources
IEEE AccessThe development of the novel multiphase brushless doubly-fed generator system and voltage controller for stand-alone mode configuration is proposed in this paper.
Krzysztof Blecharz +2 more
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Energies, 2015 New multiphase Wound-Field Doubly Salient Machines (WFDSMs) for electrical actuators with symmetric phases are investigated and compared in this paper. With a comparative study of the pole number and pole arc coefficient, the salient pole topology of the
Li-Wei Shi, Bo Zhou
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Multiphase flow challenges in drilling, completions, and injection: Part 1
PetroleumThis review addresses the diverse applications of multiphase flows, focusing on drilling, completions, and injection activities in the oil and gas industry. Identifying contemporary challenges and suggesting future research directions, it comprehensively
C.E. Obi +3 more
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Machine Learning Estimation of Energy Fractions in Magnetohydrodynamic Turbulence Modes
The Astrophysical JournalMagnetohydrodynamic (MHD) turbulence plays a central role in many astrophysical processes in the interstellar medium (ISM), including star formation and cosmic-ray transport and acceleration.
Jiyao Zhang, Yue Hu
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