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AvtorDžebo, Elvira
Žagar, Dušan, 1963-
Četina, Matjaž
Petkovšek, Gregor
Naslov Simulation of dam-break flow in channel expansion with coupled 2-D/3-D SPH model [Elektronski vir] / Elvira Džebo ... [et al.]
Vrsta/vsebinatype of material prispevek na konferenci
Jezikangleški
Leto2012
Fizični opisStr. 403-408 : Ilustr.
Značilnosti elektronskega viraEl. članek
OpombeNasl. z nasl. zaslona
Abstract
Bibliografija: str. 407-408
Predmetne oznake (nekontrolirane)SPH / porušitev pregrade / povezan 2-D/3-D SPH model / SPH / dam break / coupled 2-D/3-D model
UDK627.5
PovzetekThe 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.
COBISS.SI-ID5860705
Glej publikacijo TI=7th International SPHERIC Workshop Proceedings [Elektronski vir] : Prato, Italy, 29-30 May 2012.- Str. 403-408
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