Simulation of dam-break flow in channel expansion with coupled 2-D/3-D SPH model
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.
SPH
dam break
coupled 2-D/3-D model
SPH
porušitev pregrade
povezan 2-D/3-D SPH model
true
false
false
Angleški jezik
Angleški jezik
Neznano
2015-07-10 10:18:51
2015-07-10 10:18:51
2016-05-25 22:24:27
0000-00-00 00:00:00
2012
0
0
Str. 403-408
0000-00-00
NiDoloceno
NiDoloceno
NiDoloceno
627.5
5860705
5860449
http://drugg.fgg.uni-lj.si/4063/
https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=32693
Fakulteta za gradbeništvo in geodezijo