Results 21 to 30 of about 110,928 (311)
DG-GMsFEM for Problems in Perforated Domains with Non-Homogeneous Boundary Conditions
Computation, 2021 Problems in perforated media are complex and require high resolution grid construction to capture complex irregular perforation boundaries leading to the large discrete system of equations. In this paper, we develop a multiscale model reduction technique
Valentin Alekseev +3 more
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Fluids, 2021 In this paper, we consider the poroelasticity problem in fractured and heterogeneous media. The mathematical model contains a coupled system of equations for fluid pressures and displacements in heterogeneous media.
Aleksei Tyrylgin +4 more
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A local data assimilation method (Local DA v1.0) and its application in a simulated typhoon case [PDF]
Geoscientific Model Development, 2022 Integrating the hybrid and multiscale analyses and the parallel computation is necessary for current data assimilation schemes. A local data assimilation method, Local DA, is designed to fulfill these needs.
S. Wang, X. Qiao
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Algorithms, 2021 Parameter identification is an important research topic with a variety of applications in industrial and environmental problems. Usually, a functional has to be minimized in conjunction with parameter identification; thus, there is a certain similarity ...
Vasiliy V. Grigoriev +2 more
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An Accurate Approximation of the Two-Phase Stefan Problem with Coefficient Smoothing
Mathematics, 2020 In this work, we consider the heat transfer problems with phase change. The mathematical model is described through a two-phase Stefan problem and defined in the whole domain that contains frozen and thawed subdomains.
Vasily Vasil’ev, Maria Vasilyeva
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Generalized Multiscale Finite Element Method for Elastic Wave Propagation in the Frequency Domain
Computation, 2020 In this work, we consider elastic wave propagation in fractured media. The mathematical model is described by the Helmholtz problem related to wave propagation with specific interface conditions (Linear Slip Model, LSM) on the fracture in the frequency ...
Uygulana Gavrilieva +2 more
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Remaining Useful Life Prediction Model for Rolling Bearings Based on MFPE–MACNN
Entropy, 2022 Aiming to resolve the problem of redundant information concerning rolling bearing degradation characteristics and to tackle the difficulty faced by convolutional deep learning models in learning feature information in complex time series, a prediction ...
Yaping Wang +4 more
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High performance reduction technique for multiscale finite element modeling (HPR-FE2): Towards industrial multiscale FE software [PDF]
Computer Methods in Applied Mechanics and Engineering, 2021 The authors have shown in previous contributions that reduced order modeling with optimal cubature applied to finite element square (FE2) techniques results in a reliable and affordable multiscale approach, the HPR-FE2 technique. Such technique is assessed here for an industrial case study of a generic 3D reinforced composite whose microstructure is ...
Raschi, Marcelo +3 more
openaire +5 more sources
Graphical approach to model reduction for nonlinear biochemical networks. [PDF]
PLoS ONE, 2011 Model reduction is a central challenge to the development and analysis of multiscale physiology models. Advances in model reduction are needed not only for computational feasibility but also for obtaining conceptual insights from complex systems.
David O Holland +2 more
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ISPRS International Journal of Geo-Information, 2022 Accessibility plays an important role in alleviating rural poverty. Previous studies have explored the relationship between accessibility and rural poverty, but they offer limited evidence of the collective influence of multiscale transport accessibility
Leibo Cui +3 more
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