Results 21 to 30 of about 19,277,069 (274)

Multiscale simulation of fullerene reinforced composite structures: From molecular dynamics to finite element continuum mechanics

MATEC Web of Conferences, 2018
The aim of the present study is to propose a multiscale computational technique for the prediction of the elastic mechanical properties of nanoreinforced composites. The proposed method utilizes a molecular dynamics (MD) based numerical scheme to capture
Giannopoulos Georgios I., Georgantzinos Stylianos K., Tsiamaki Androniki S., Anifantis Nick K.   +3 more
doaj   +1 more source

Elastic modulus of self-compacting fibre reinforced concrete: Experimental approach and multi-scale simulation

Case Studies in Construction Materials, 2023
Evaluation of the elastic properties of self-compacting fibre-reinforced concrete is one of the primary concerns in civil and structural engineering. This paper investigates the elastic properties of self-compacting fibre-reinforced concrete with varying
Abdullah Alshahrani, Sivakumar Kulasegaram, Abhishek Kundu   +2 more
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Modeling of the flow and heat exchange in pipes with turbulators of viscous heat carriers in the laminar region, as well as in the transition to turbulent flow

Вестник Дагестанского государственного технического университета: Технические науки, 2023
Objective. Mathematical modeling of heat transfer in pipes with turbulators for viscous heat carriers at Reynolds numbers characteristic of laminar and transient flow regimes is carried out by the calculation method.
I. E. Lobanov
doaj   +1 more source

Multiscale Flow Simulation by Adaptive Finite Volume Particle Methods [PDF]

PAMM, 2005
AbstractWe report on recent developments concerning adaptive finite particle methods, which are used for the numerical simulation of multiscale phenomena in time‐dependent evolution processes. The proposed concept relies on a finite volume approach, which we combine with WENO reconstruction from particle average values.
openaire   +3 more sources

A Stabilized Finite Element Framework for Anisotropic Adaptive Topology Optimization of Incompressible Fluid Flows

Fluids, 2023
This paper assesses the feasibility of performing topology optimization of laminar incompressible flows governed by the steady-state Navier–Stokes equations using anisotropic mesh adaptation to achieve a high-fidelity description of all fluid–solid ...
Wassim Abdel Nour, Joseph Jabbour, Damien Serret, Philippe Meliga, Elie Hachem   +4 more
doaj   +1 more source

Proper generalized decomposition of time-multiscale models [PDF]

, 2011
Models encountered in computational mechanics could involve many time scales. When these time scales cannot be separated, one must solve the evolution model in the entire time interval by using the finest time step that the model implies.
CHINESTA SORIA, Francisco, DOBLARÉ, Manuel, Chinesta, Francisco, CUETO, Elias, Amine Ammar, Francisco Chinesta, Manuel Doblaré, Elías Cueto, AMMAR, Amine   +8 more
core   +1 more source

Direct Simulation of Fluid Transport at Solid Interfaces with a Multiscale Lattice-Boltzmann Finite-Volume Method

Applied Rheology, 2004
It is shown that the combined use of a mesoscopic lattice Boltzmann solver with finite-volume techniques, both enriched with local-refinement (multiscale) capabilities, permits to describe transport phenomena at fluid-solid interfaces to a degree of ...
Rotondi R., Succi S., Bella G.
doaj   +1 more source

A three-dimensional multiscale model for the prediction of thrombus growth under flow with single-platelet resolution.

PLoS Computational Biology, 2022
Modeling thrombus growth in pathological flows allows evaluation of risk under patient-specific pharmacological, hematological, and hemodynamical conditions.
Kaushik N Shankar, Yiyuan Zhang, Talid Sinno, Scott L Diamond   +3 more
doaj   +1 more source

Multiscale Simulation of 2D Heat Transfer in Composite Media Based on Global–Local Enrichment Functions

Mathematics
In this study, the extended finite element method (XFEM) was integrated into the generalized multiscale finite element method with global–local enrichment (GFEMgl) to simulate 2D heat conduction in highly heterogeneous materials (i.e., matrixes with ...
Guangzhong Liu, Jiamin Guo, Yan Bao, Huan Ping   +3 more
doaj   +1 more source

A Multiscale Compositional Numerical Study in Tight Oil Reservoir: Incorporating Capillary Forces in Phase Behavior Calculation

Applied Sciences
Tight oil reservoirs offer significant development potential. Due to the pronounced capillary forces in their nanopores, phase behavior differs markedly from that in conventional reservoirs, challenging traditional equations of state and numerical ...
Junqiang Wang, Li Wu, Qian Sun, Ruichao Zhang, Wenbin Chen, Haitong Yang, Shuoliang Wang   +6 more
doaj   +1 more source