Results 11 to 20 of about 24,483 (292)
Model Order Reduction in Computational Multiscale Fracture Mechanics [PDF]
Key Engineering Materials, 2016 Nowadays, the model order reduction techniques have become an intensive research eld because of the increasing interest in the computational modeling of complex phenomena in multi-physic problems, and its conse- quent increment in high-computing demanding processes; it is well known that the availability of high-performance computing capacity is, in ...
Caicedo Silva, Manuel Alejandro +3 more
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Multiscale model reduction for shale gas transport in fractured media [PDF]
Computational Geosciences, 2016 In this paper, we develop a multiscale model reduction technique that describes shale gas transport in fractured media. Due to the pore-scale heterogeneities and processes, we use upscaled models to describe the matrix. We follow our previous work \cite{aes14}, where we derived an upscaled model in the form of generalized nonlinear diffusion model to ...
Akkutlu, I. Y. +2 more
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A Multiscale Model Reduction Method for Partial Differential Equations [PDF]
ESAIM: Mathematical Modelling and Numerical Analysis, 2014 We propose a multiscale model reduction method for partial differential equations. The main purpose of this method is to derive an effective equation for multiscale problems without scale separation. An essential ingredient of our method is to decompose the harmonic coordinates into a smooth part and a highly oscillatory part so that the smooth part is
Ci, Maolin +2 more
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Multiscale model reduction technique for fluid flows with heterogeneous porous inclusions
Journal of Computational and Applied Mathematics, 2023 Numerical treatment of the problem of two-dimensional viscous fluid flow in and around circular porous inclusions is considered. The mathematical model is described by Navier-Stokes equation in the free flow domain $Ω_f$ and nonlinear convective Darcy-Brinkman-Forchheimer equations in porous subdomains $Ω_p$.
Maria V. Vasilyeva +2 more
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Dimensional Reduction of a Multiscale Model Based on Long Time Asymptotics [PDF]
Multiscale Modeling & Simulation, 2017 We consider a class of kinetic models for which a moment equation has a natural interpretation. We show that, depending on their velocity field, some models lead to moment equations that enable one to compute monokinetic solutions economically. We detail the example of a multiscale structured cell population model, consisting of a system of 2D ...
Clément, Frédérique +3 more
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MetalsIn this study, a multiscale model is developed through secondary development (UMAT and UEXTERNALDB) in Abaqus with the objective of simulating the thermal deformation process with dynamic recrystallization behavior.
Die Wu, Zhen Ning, Yanlin Zhu, Wei Yu
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Variance reduction for multiscale tumor growth modeling
, 2016 sponsorship: Agency for innovation by Science and Technology (IWT). Research Foundation - Flanders.
Lejon, Annelies +2 more
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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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