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Coarse mesh Reynolds averaged simulation with hybrid fictitious domain-immersed boundary method
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SYSNO ASEP 0579285 Document Type A - Abstract R&D Document Type The record was not marked in the RIV R&D Document Type Není vybrán druh dokumentu Title Coarse mesh Reynolds averaged simulation with hybrid fictitious domain-immersed boundary method Author(s) Kubíčková, Lucie (UT-L)
Isoz, Martin (UT-L) ORCIDNumber of authors 2 Source Title 18th OpenFOAM Workshop 2023, Book of unedited abstracts. - Itálie, 2023 / Guerrero J. ; Pralits J. Number of pages 3 s. Publication form Print - P Action OpenFOAM Workshop /18./ Event date 11.07.2023 - 14.07.2023 VEvent location Genoa Country IT - Italy Event type EUR Language eng - English Country IT - Italy Keywords RAS ; wall functions ; HFDIB ; CFD ; OpenFOAM Subject RIV BA - General Mathematics OECD category Applied mathematics Institutional support UT-L - RVO:61388998 Annotation Immersed boundary method (IBM) is a numerical tool used in computational fluid dynamics where it allows to simulate flow around a complex geometry without the need to create a geometry-conforming mesh. Instead, a simple mesh is used and the geometry is projected onto it by a scalar indicator field and the effect of the solid phase on the flow is accounted for by adjustment of governing equations. Utilization of an IBM is advantageous in geometry optimizations where it saves time on mesh generation and reduces other mesh-related difficulties. In our past work, we have used our custom IBM variant, the hybrid fictitious domain-immersed boundary (HFDIB) method [1], to perform a topology optimization under laminar flow conditions. However, in engineering practice, the flow is usually turbulent and to perform a topology optimization under turbulent flow conditions, the HFDIB need to be coupled with a feasible turbulence modeling approach. In this work, we present achieved results in development of a HFDIBRANS method that is a combination of the HFDIB method and the Reynolds-averaged turbulence modeling approach with wall functions. In particular, we implemented the k-ω, k-ε, k-ω SST and realizable k-ε models with wall functions for k, ω and ε. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2024
Number of the records: 1