Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Mattias Liefvendahl"'
Autor:
Timofey Mukha, Mattias Liefvendahl
Publikováno v:
SoftwareX, Vol 7, Iss , Pp 112-114 (2018)
A Python package for generating inflow for scale-resolving computer simulations of turbulent flow is presented. The purpose of the package is to unite existing inflow generation methods in a single code-base and make them accessible to users of vario
Externí odkaz:
https://doaj.org/article/7dd276be72e643ff83ac840847a06883
Autor:
Ilkka Karasalo, Martin Östberg, Peter Sigray, Jukka-Pekka Jalkanen, Lasse Johansson, Mattias Liefvendahl, Rickard Bensow
Publikováno v:
Frontiers in Marine Science, Vol 4 (2017)
Estimates of the noise source spectra of ships based on long term measurements in the Baltic sea are presented. The measurement data were obtained by a hydrophone deployed near a major shipping lane south of the island Öland. Data from over 2,000 cl
Externí odkaz:
https://doaj.org/article/bf6b9d905f974b3ab18cee698384e22d
Autor:
Mattias Liefvendahl, Mattias Johansson
Publikováno v:
Journal of Ship Research. 65:41-54
A complete approach for wall-modeled large-eddy simulation (WMLES) is demonstrated for the simulation of the flow around a bulk carrier in the model scale. Essential components of the method are an a-priori estimate of the thickness of the turbulent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ced668d08a139e31a4ef9151958c367d
https://doi.org/10.5957/josr.09180065
https://doi.org/10.5957/josr.09180065
Autor:
Göran Broström, Mattias Liefvendahl, Anders Tengberg, Lars Arneborg, Ida-Maja Hassellöv, Amanda T. Nylund, Ulf Mallast, Arash Eslamdoost, Rickard Bensow
This interdisciplinary study with implications for fate and transport of pollutants from shipping, investigates the previously overlooked phenomenon of ship induced mixing. When a ship moves through water, the hull and propeller induce a long-lasting
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36159f9b4b40f44b04957210a6d7be74
https://doi.org/10.5194/egusphere-egu21-11011
https://doi.org/10.5194/egusphere-egu21-11011
Autor:
Christer Fureby, Mattias Liefvendahl
Publikováno v:
Ocean Engineering. 143:259-268
A review is presented of estimates for the grid resolution requirements for wall-resolved and wall-modeled large-eddy simulation, of flows with an important influence of turbulent boundary layers. The estimates are described within a classification s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d71969c6316529dabedfc7a2d4935ead
https://doi.org/10.1016/j.oceaneng.2017.07.055
https://doi.org/10.1016/j.oceaneng.2017.07.055
Autor:
Timofey Mukha, Mattias Liefvendahl
Publikováno v:
Computers & Fluids. 156:21-33
The generation of turbulent inflow boundary conditions using precursor channel flow simulations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb73b5552f2d83d371ce1a75c70ba952
https://doi.org/10.1016/j.compfluid.2017.06.020
https://doi.org/10.1016/j.compfluid.2017.06.020
Publikováno v:
Computers & Fluids. 221:104885
The predictive accuracy of wall-modelled LES is influenced by a combination of the subgrid model, the wall model, the numerical dissipation induced primarily by the convective numerical scheme, and also by the density and topology of the computationa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0e842f0429138a7309da3822fffc512
https://doi.org/10.1016/j.compfluid.2021.104885
https://doi.org/10.1016/j.compfluid.2021.104885
The predictive accuracy of wall-modeled large eddy simulation is studied by systematic simulation campaigns of turbulent channel flow. The effect of wall model, grid resolution and anisotropy, numerical convective scheme and subgrid-scale modeling is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6aa6ccedeff38626ae0eabd7a1c6166b
http://arxiv.org/abs/1810.05213
http://arxiv.org/abs/1810.05213
Autor:
Jukka-Pekka Jalkanen, Lasse Johansson, Mattias Liefvendahl, Rickard Bensow, Peter Sigray, Martin Östberg, Ilkka Karasalo, Mathias Andersson, Heikki Peltonen, Jukka Pajala
In this paper, a methodology is presented for modeling underwater noise emissions from ships based on realistic vessel activity in the Baltic Sea area. This paper combines the Wittekind noise source model with the Ship Traffic Emission Assessment Mod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a062e4a8e5f7069992d56dacbfa06d0
https://doi.org/10.5194/os-2018-48
https://doi.org/10.5194/os-2018-48
This work presents a feature-rich open-source library for wall-modelled large-eddy simulation (WMLES), which is a turbulence modelling approach that reduces the computational cost of standard (wall-resolved) LES by introducing special treatment of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5cfa92b94b84904967fc77041ba850cc