Performance study of domain decomposition methods for 2D parallel finite element analysis

Marcsa, Dániel; Kuczmann, Miklós

doi:10.1556/pollack.8.2013.3.5

Cited by 3 publications

(4 citation statements)

References 8 publications

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“…The first chimney (of the 1 st and the 2 nd group) has a real flow of 303.6 m 3 /s, with an outlet speed of the gas of 9.44 m/s, on the other hand, the second chimney (of the 3 rd group) has a real flow of 149.2 m 3 /s, with an outlet speed of the gas of 4.64 m/s. So, the model was simulated by the finite element method [14], taking care of the creation of the geometry, the mesh, and the exploitation of result. In fact, two different times are taken to see the pollution evolution in the Jerada city: the emissions of SO 2 , PM 10 , NO 2 and CO after 3 hours and after 24 hours from the chimneys outlet, the results are illustrated in Fig.…”

Section: Resultsmentioning

confidence: 99%

Numerical study of the smoke plume of the Jerada thermal power plant Morocco

et al. 2019

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The main goal of this study is firstly to model the phenomenon of advection and diffusion of the gaseous residues of coal combustion. On the other hand, to study the dispersion of this pollution by varying the parameters like the wind and the resources of pollution, where there are four emissions: SO 2 , CO, NO 2 and PM 10 . The present model will compare estimating concentrations with the results found by the contribution of the thermal power plant of Jerada city, where the American Environmental Regulatory Model is used. The results suggest that SO 2 , PM 10 , NO 2 and CO concentration simulated by turbulent k-ε model in combination with the transport model of diluted species, at the 3h and 24h intervals, greater than their respective observed concentrations compared with the American Environmental Regulatory Model. The concentrations of the model found are very high and exceed the limit values under the study conditions. Indeed, the simulated model was used in 2D with a very low wind speed (10 -4 m/s) and in the absence of gravity, hence the total neglect of altitude because the two sources of pollution are at the height of 120 m.

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Section: Resultsmentioning

confidence: 99%

Numerical study of the smoke plume of the Jerada thermal power plant Morocco

et al. 2019

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“…There is an obvious solution to this problem, namely the parallelization of finite element method [6], [7], [11], [12], [13] in order to speed-up the computations. One of the possibilities is the Domain Decomposition Method (DDM) [6], [7], [13], [14], [15], [16], [17]. The used DDM is the Schur-complement method [13], [14], [15] with the parallel preconditioned conjugate gradient method [13], [14], which is currently one of the most popular methods for systems with real symmetric positive definite matrices.…”

Section: Fig 1 Block Diagram Of the Switched Reluctance Drive Systemmentioning

confidence: 99%

“…3. The linear sparse system, Ka=b has been split into N S particular blocks [13], [14], [15]. It should be noted, that it is much easier to take into account the mechanical motional equation in the parallel computation, if the sliding surface is used as an artificial interface boundary in the air gap, as it can be seen in Fig.…”

Section: Parallel Coupled Fem Modelmentioning

confidence: 99%

Finite element analysis of switched reluctance motor with rotor position based control

Marcsa¹,

Kuczmann²

2016

Pollack Periodica

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This research presents a field-circuit coupled parallel finite element model of a switched reluctance motor embedded in a simple closed loop control system. The parallel numerical model is based on the Schur-complement method coupled with an iterative solver. The used control system is the rotor position based control, which is applied to the FEM model. The results and parallel performance of the voltage driven finite element model are compared with the results from the current driven model. Moreover, the results of the start-up of the loaded motor show why the model accuracy is important in the control loop.

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“…The class of the shallow-water equations, modeling by the equations of Saint-Venant, it is a very studied subject in hydraulic construction and in applied mathematics. Indeed, the dam break problem was simulated and compared on dry bed with a second order centered scheme written in finite element method [3][4][5] and the determination of the water depth and the velocities field contributes to the design of the hydraulic structures like bridges, water transport, dams and the planning of resources in water is also of a fundamental importance, notably the prediction of the ruptures of the dams [6,7]. Several numeric method classes are used in the literature to solve the equations of Saint-Venant, each having its merits and its weak points.…”

Section: Introductionmentioning

confidence: 99%

Dam-break computations by a finite volume on dry regions

Boushaba¹,

Daoudi

Yachouti

et al. 2022

Pollack

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This paper presents numerical solvers, based on the finite volume method. This scheme solves dam break problems on the dry bottom in 2D configuration. The difficulty of the simulation of this type of problem lies in the propagation of shocks on the dry bottom. The equation model used is the shallow water equations written in conservative form. The scheme used is second order in space and time. The method is modified to treat dry bottoms. The validity of the method is demonstrated over the dam break example. A comparison with finite elements shows the weakness and robustness of each method.

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Performance study of domain decomposition methods for 2D parallel finite element analysis

Cited by 3 publications

References 8 publications

Numerical study of the smoke plume of the Jerada thermal power plant Morocco

Numerical study of the smoke plume of the Jerada thermal power plant Morocco

Finite element analysis of switched reluctance motor with rotor position based control

Dam-break computations by a finite volume on dry regions

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