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Arch Comput Methods Eng 2018 2;25(4):1059-1127. Epub 2017 Jun 2.

Institute for Computational Engineering and Sciences, The University of Texas at Austin, 201 East 24th St, Stop C0200, Austin, TX 78712 USA.

We review the treatment of trimmed geometries in the context of design, data exchange, and computational simulation. Such models are omnipresent in current engineering modeling and play a key role for the integration of design and analysis. The problems induced by trimming are often underestimated due to the conceptional simplicity of the procedure. Read More

Arch Comput Methods Eng 2018 18;25(4):879-899. Epub 2017 Apr 18.

School of Mechanical, Aerospace and Civil Engineering, The University of Manchester, Manchester, M13 9PL UK.

The purpose of this paper is to provide a high level, holistic overview of the work being undertaken in the wind energy industry. It summarises the main techniques used to simulate both aerodynamic and structural issues associated with wind turbines and farms. The motivation behind this paper is to provide new researchers with an outlook of the modelling and simulation landscape, whilst highlighting the trends and direction research is taking. Read More

Arch Comput Methods Eng 2018 22;25(3):591-645. Epub 2017 Feb 22.

1School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou Street, Zografou Campus, 15780 Athens, Greece.

Following the substantial progress in molecular simulations of polymer-matrix nanocomposites, now is the time to reconsider this topic from a critical point of view. A comprehensive survey is reported herein providing an overview of classical molecular simulations, reviewing their major achievements in modeling polymer matrix nanocomposites, and identifying several open challenges. Molecular simulations at multiple length and time scales, working hand-in-hand with sensitive experiments, have enhanced our understanding of how nanofillers alter the structure, dynamics, thermodynamics, rheology and mechanical properties of the surrounding polymer matrices. Read More

Arch Comput Methods Eng 2018 7;25(2):507-543. Epub 2017 Jan 7.

2Software Engineering for Safety-Critical Systems, Technische Universität Ilmenau, Helmholtzplatz 5, 98693 Ilmenau, Germany.

Species knowledge is essential for protecting biodiversity. The identification of plants by conventional keys is complex, time consuming, and due to the use of specific botanical terms frustrating for non-experts. This creates a hard to overcome hurdle for novices interested in acquiring species knowledge. Read More

Arch Comput Methods Eng 2018 11;25(2):195-271. Epub 2017 Oct 11.

2CIMNE Centre Internacional de Mètodes Numèrics en Enginyeria, Parc Mediterrani de la Tecnologia, UPC, Esteve Terradas 5, 08860 Castelldefels, Spain.

FEMPAR is an open source object oriented Fortran200X scientific software library for the high-performance scalable simulation of complex multiphysics problems governed by partial differential equations at large scales, by exploiting state-of-the-art supercomputing resources. It is a highly modularized, flexible, and extensible library, that provides a set of modules that can be combined to carry out the different steps of the simulation pipeline. FEMPAR includes a rich set of algorithms for the discretization step, namely (arbitrary-order) grad, div, and curl-conforming finite element methods, discontinuous Galerkin methods, B-splines, and unfitted finite element techniques on cut cells, combined with -adaptivity. Read More

Arch Comput Methods Eng 2017 20;24(2):365-395. Epub 2016 Jan 20.

4Department of Mechanical Engineering, Technical University of Denmark, 2800 Lyngby, Denmark.

The increased usage of fiber reinforced polymer composites in load bearing applications requires a detailed understanding of the process induced residual stresses and their effect on the shape distortions. This is utmost necessary in order to have more reliable composite manufacturing since the residual stresses alter the internal stress level of the composite part during the service life and the residual shape distortions may lead to not meeting the desired geometrical tolerances. The occurrence of residual stresses during the manufacturing process inherently contains diverse interactions between the involved physical phenomena mainly related to material flow, heat transfer and polymerization or crystallization. Read More

Arch Comput Methods Eng 2017 29;24(2):281-317. Epub 2016 Jan 29.

2Science Labs, Department of Earth Sciences, Durham University, Durham, DH1 3LE UK.

Extracting gas from shale rocks is one of the current engineering challenges but offers the prospect of cheap gas. Part of the development of an effective engineering solution for shale gas extraction in the future will be the availability of reliable and efficient methods of modelling the development of a fracture system, and the use of these models to guide operators in locating, drilling and pressurising wells. Numerous research papers have been dedicated to this problem, but the information is still incomplete, since a number of simplifications have been adopted such as the assumption of shale as an isotropic material. Read More

Arch Comput Methods Eng 2017 31;24(4):669-702. Epub 2016 Aug 31.

Institute of Thermal Technology, Konarskiego 22C, 44-100 Gliwice, Poland.

The numerical simulation of the large scale industrial circulating fluidized bed (CFB) boilers, working under air- and oxy-fuel combustion are presented in this paper. Moreover, two-dimensional experimental rig used for numerical model validation is described. For three-dimensional numerical simulations two industrial compact CFB boilers were selected installed in Polish Power Plants. Read More

Arch Comput Methods Eng 2017 26;24(3):519-542. Epub 2016 Apr 26.

2Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland.

High pressure variable displacement axial piston pumps are subject to complex dynamic phenomena. Their analysis is difficult, additionally complicated by leakage of the working fluid. Analytically gap flow is calculated with the Reynolds equation which describes the pressure distribution in a thin lubricating layer. Read More