Naslov
IMPLICITLY COUPLED TURBULENCE MODELS

Autori
Keser, Robert ; Jasak, Hrvoje

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, neobjavljeni rad, znanstveni

Skup
12th OpenFOAM Workshop

Mjesto i datum
Exeter, Ujedinjeno Kraljevstvo, 24.07.2017. - 27.07.2017

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Block Coupled Solvers ; Turbulence Modelling ; Benchmarking

Sažetak
Modern implicitly coupled pressure-velocity algorithms introduced a considerable increase in convergence rates when compared with segregated algorithms. Although, segregated treatment of turbulence model equations often limits such algorithms from reaching their full potential. Therefore, implicit coupling of two-equation turbulence models is investigated. The procedure is tested using incompressible k-epsilon and k- omega SST turbulence models for simulating several complex flow fields. It is found that implicit cross-coupling of two-equation turbulence models accelerates convergence of field values, exhibits smoother convergence compared to segregated turbulence models and often prevents overshoots and undershoots of the calculated field values during the simulation.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA