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Simulation of dam-break flow in channel expansion with coupled 2-D/3-D SPH model
Džebo, Elvira (Avtor), Žagar, Dušan (Avtor), Četina, Matjaž (Avtor), Petkovšek, Gregor (Avtor)

URLURL - Predstavitvena datoteka, za dostop obiščite http://drugg.fgg.uni-lj.si/4063/ Novo okno

Izvleček
The paper presents the simulation of a dam-break flow in a channel expansion with a coupled 2-D/3-D SPH mathematical model Tis Isat. The model was calibrated and validated against the experiments of Martin and Moyce [1]. Overall agreement between the Tis Isat model and other available models was good while local behaviour at the solid boundaries was better [2]. The noveltyof the presented approach is in the application of a coupled 2-D/3-D SPH model. The proposed method is applicable to systems where the flow transits from 2-D to 3-D state. The proposed approach significantly shortens the computational time of the SPH simulations, while the precision of results is still satisfactory. A laboratory experiment of the wave after instantaneouscollapse of a dam [3] was used for calibration. The downstream channel slope was 0.087% and the channel width expanded instantaneously from 0.4 m to 1.2 m. The results of the coupled 2- D/3-D mathematical model Tis Isat were compared to measurements on this physical model, results of a 1-D finite difference model and results of the fully 3-D mathematical model Tis Isat. The overall agreement of the results was at least as good as achieved with other models.

Jezik:Angleški jezik
Ključne besede:SPH, dam break, coupled 2-D/3-D model
Tipologija:1.08 - Objavljeni znanstveni prispevek na konferenci
Organizacija:FGG - Fakulteta za gradbeništvo in geodezijo
Leto izida:2012
Št. strani:Str. 403-408
UDK:627.5
COBISS.SI-ID:5860705 Povezava se odpre v novem oknu
Število ogledov:328
Število prenosov:49
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
 
Skupna ocena:(0 glasov)
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Gradivo je del monografije

Naslov:7th International SPHERIC Workshop Proceedings : Prato, Italy, 29-30 May 2012
Založnik:Spheric
COBISS.SI-ID:5860449 Novo okno
Kraj izida:Prato
Leto izida:2012

Sekundarni jezik

Jezik:Angleški jezik
Ključne besede:SPH, porušitev pregrade, povezan 2-D/3-D SPH model

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