Pregled bibliografske jedinice broj: 1244228
Assessment of numerical frameworks for turbulence transition modelling in pulsatory flows
Assessment of numerical frameworks for turbulence transition modelling in pulsatory flows // The 8th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2022)
Oslo, Norveška, 2022. (ostalo, nije recenziran, neobjavljeni rad, stručni)
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Naslov
Assessment of numerical frameworks for turbulence
transition modelling in pulsatory flows
Autori
Milović, Philipp ; Karšaj, Igor ; Tuković, Željko
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, neobjavljeni rad, stručni
Skup
The 8th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2022)
Mjesto i datum
Oslo, Norveška, 05.06.2022. - 09.06.2022
Vrsta sudjelovanja
Ostalo
Vrsta recenzije
Nije recenziran
Ključne riječi
pulsatory flow ; turbulence transition ; finite volume method ; OpenFOAM
Sažetak
Pulsatory flows have been the subject of investigation for several decades [1], [2], with research being mainly focused on high Reynolds number flows, either in, or near, the fully turbulent regime, while research into low Reynolds number flows, like the ones encountered in arterial flows, has been fairly limited. Consequently, the modelling of transition to turbulence is still an open issue in hemodynamics. As a result, the application of numerical techniques in hemodynamics research has only had a limited effect in advancing understanding of arterial flows, primarily due to the use of oversimplifications and ambiguity in the modelling of turbulence and transition to turbulence. It is therefore the aim of this research to assess the viability of current turbulence modelling approaches, primarily various Reynolds averaged Navier-Stokes (RANS) models and Large Eddy Simulation (LES), for the modelling of arterial flows. Several commonly used RANS and LES approaches are used to simulate pulsatory flows and the results are compared with available experimental and direct numerical simulation data. This is done by employing the cell-centred finite volume method implemented within the open-source code OpenFOAM [3]. An assessment of the frameworks considered, and proposals for future research directions are given based on the presented results.
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo
POVEZANOST RADA
Projekti:
IP-2018-01-3796 - Eksperimentalna platforma za simulaciju endovaskularnog liječenja intrakranijskih aneurizmi (ElPlaSTICA) (Ozretić, David, HRZZ - 2018-01) ( CroRIS)
HRZZ-IP-2020-02-4016 - Numerička procjena rizika od rupture nekomplicirane disekcije aorte tipa B (LessPatients) (Tuković, Željko, HRZZ - 2020-02) ( CroRIS)
Ustanove:
Medicinski fakultet, Zagreb,
Fakultet strojarstva i brodogradnje, Zagreb