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Large scale multiphysics and multiscale simulations based on meshless methods
Šarler, Božidar (Author)

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Abstract
Structure of a novel meshless solution procedure for calculation of solid and fluid mechanics problems, coupled with the electromagnetic fields, is presented. The discretisation of the governing coupled set of partial differential equations is defined on a set of nodes which can be non-uniformly distributed. The domain and boundary of interest are divided into overlapping influence areas. On each of them, the fields are represented with radial basis functions collocation on a subset of nodes, present in the influence area. The micro-scale problems are tackled through transition rules between the nodes. All governing equations are solved in their strong form. The polygonisation is not present. The large deformation and growth problems are handled by node redistribution and activation of additional nodes. The solution procedure can be adapted in node redistribution and/or refinement sense, which is of utmost importance when coping with the fields exhibiting sharp gradients. The method is extremely simple to code and accurate, allowing straightforward parallelisation. Besides this, the inclusion of complicated physics is transparent, reducing the development time. The coding in 2D or 3D is almost identical. Applications to several large-scale industrial problems are shown, particularly in the field of thermomechanical processing of steel and aluminium alloys.

Language:English
Keywords:multiphysics problems, multiscale problems, meshless methods, thermomechanical processing, steel, aluminium
Tipology:1.10 - Published Scientific Conference Contribution Abstract (invited lecture)
Organization:FS - Faculty of Mechanical Engineering
Year:2018
Number of pages:Str. 46
UDC:539.92:621.89(045)
COBISS.SI-ID:16099867 Link is opened in a new window
Views:272
Downloads:199
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Record is a part of a monograph

Title:HPC for innovation: when science meets industry
Subtitle:PRACEdays18
Publisher:University of Ljubljana
COBISS.SI-ID:16099611 This link opens in a new window
Place of publishing:Ljubljana
Year:2018

Document is financed by a project

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Project no.:P2-0162
Name:Tranzientni dvofazni tokovi

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Project no.:J2-7384
Name:NAPREDNO MODELIRANJE IN SIMULACIJA KAPLJEVITO-TRDNIH PROCESOV S PROSTIMI ROBOVI

Secondary language

Language:Slovenian
Keywords:problemi fizike, večraztežnostni problemi, meshless metode, termomehanska obdelava, jeklo, aluminij

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