Název: Improving computational efficiency of contact solution in fully resolved CFD-DEM simulations with arbitrarily-shaped solids
Autoři: Studeník, Ondřej ; Kotouč Šourek, M. ; Isoz, Martin
Typ dokumentu: Příspěvky z konference
Konference/Akce: Seminar on Numerical Analysis, Ostrava (CZ), 20230123
Rok: 2023
Jazyk: eng
Abstrakt: The abundance of industrial processes containing both solid and liquid phases generate demand for fully resolved models allowing for detailed analysis and optimization of these processes. An established approach providing such models is based using a variant of an immersed boundary method to couple the computational fluid dynamics (CFD) and discrete element method (DEM). In the talk, we will present our custom and monolithic implementation of a fully-resolved CFDDEM solver and concentrate on the intricacies of solving contact between two arbitrarily-shaped solids. We shall propose an efficient contact treatment based on the concept of a virtual mesh, which provides the mesh resolution required by DEM through dividing the space around the contact point in a finite volume fashion without any changes to the CFD mesh itself. A substantial part of the talk will devoted to the parallelization of the contact solution, especially in the context of the domain decomposition method imposed by the CFD solver.
Klíčová slova: CFD; DEM; virtual mesh
Zdrojový dokument: SNA'23 Seminar on Numerical Analysis, ISBN 978-80-86407-85-2

Instituce: Ústav termomechaniky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný na externích webových stránkách.
Externí umístění souboru: https://www.ugn.cas.cz/event/2023/sna/files/sna23-sbornik.pdf
Původní záznam: https://hdl.handle.net/11104/0350974

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-541147


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav termomechaniky
Konferenční materiály > Příspěvky z konference