On efficient contact solution for arbitrarily shaped solids in CFD-DEM solver

0566314 - ÚT 2023 eng A - Abstrakt
Kotouč Šourek, M. - Studeník, O. - Isoz, Martin
On efficient contact solution for arbitrarily shaped solids in CFD-DEM solver.
[OpenFOAM Workshop /17./. 11.07.2022-14.07.2022, Cambridge, United Kingdom]
Grant CEP: GA MŠMT(CZ) EF15_003/0000493
Institucionální podpora: RVO:61388998
Klíčová slova: CFD-DEM * openFOAM * HFDIB * virtual mesh * rheology modeling
Obor OECD: Applied mathematics

Methods combining the computational fluid dynamics (CFD) and discrete element method (DEM) for simulations of particle-laden flows are commonly limited to simulations with spherical or easily parametrizable particles. However, the rheology of a general suspension is strongly affected by the particle shape. Consequently, taking into account the complete particle geometry is required for first-principles-based suspension modeling. In this work, we present further developments in a purely OpenFOAM-based CFD-DEM solver (openHFDIB-DEM) that allows for fully-resolved, four-way coupled simulations with arbitrarily-shaped solids. The solid bodies are included in the computational domain via a hybrid fictitious domain-immersed boundary (HFDIB) method built based on previous works Municchi and Radl. The movement of individual solids inside the computational domain is described via a custom variant of soft DEM, i.e. allowing slight overlaps between different particles. The solver codes, including several tutorials, may be retrieved from https://github.com/MartinKotoucSourek/openHFDIB-DEM.
Trvalý link: https://hdl.handle.net/11104/0338245