The capability of the smoothed-particle hydrodynamics (SPH) method to model supercritical flow in circular pipe bends is considered. The standard SPH method, which makes use of dynamic boundary particles (DBP), is supplemented with the original algorithm for the treatment of open boundaries. The method is assessed through a comparison with measured free-surface profiles in a pipe bend, and already proposed regression curves for estimation of the flow-type in a pipe bend. The sensitivity of the model to different parameters is also evaluated. It is shown that an adequate choice of the artificial viscosity coefficient and the initial particle spacing can lead to correct presentation of the flow-type in a bend. Due to easiness of its implementation, the SPH method can be efficiently used in the design of circular conduits with supercritical flow in a bend, such as tunnel spillways, and bottom outlets of dams, or storm sewers.
Keywords:
Smoothed-particle hydrodynamics (SPH) / super critical bend flow / helical flow / artificial viscosity
TY - JOUR
AU - Rosić, Nikola
AU - Kolarević, Milena
AU - Savić, Ljubodrag
AU - Đorđević, Dejana
AU - Kapor, Radomir
PY - 2017
UR - https://grafar.grf.bg.ac.rs/handle/123456789/2335
AB - The capability of the smoothed-particle hydrodynamics (SPH) method to model supercritical flow in circular pipe bends is considered. The standard SPH method, which makes use of dynamic boundary particles (DBP), is supplemented with the original algorithm for the treatment of open boundaries. The method is assessed through a comparison with measured free-surface profiles in a pipe bend, and already proposed regression curves for estimation of the flow-type in a pipe bend. The sensitivity of the model to different parameters is also evaluated. It is shown that an adequate choice of the artificial viscosity coefficient and the initial particle spacing can lead to correct presentation of the flow-type in a bend. Due to easiness of its implementation, the SPH method can be efficiently used in the design of circular conduits with supercritical flow in a bend, such as tunnel spillways, and bottom outlets of dams, or storm sewers.
PB - China Ocean Press
T2 - Journal of Hydrodynamics
T1 - Numerical modelling of supercritical flow in circular conduit bends using SPH method
EP - 352
IS - 2
SP - 344
VL - 29
DO - 10.1016/S1001-6058(16)60744-8
ER -
@article{
author = "Rosić, Nikola and Kolarević, Milena and Savić, Ljubodrag and Đorđević, Dejana and Kapor, Radomir",
year = "2017",
abstract = "The capability of the smoothed-particle hydrodynamics (SPH) method to model supercritical flow in circular pipe bends is considered. The standard SPH method, which makes use of dynamic boundary particles (DBP), is supplemented with the original algorithm for the treatment of open boundaries. The method is assessed through a comparison with measured free-surface profiles in a pipe bend, and already proposed regression curves for estimation of the flow-type in a pipe bend. The sensitivity of the model to different parameters is also evaluated. It is shown that an adequate choice of the artificial viscosity coefficient and the initial particle spacing can lead to correct presentation of the flow-type in a bend. Due to easiness of its implementation, the SPH method can be efficiently used in the design of circular conduits with supercritical flow in a bend, such as tunnel spillways, and bottom outlets of dams, or storm sewers.",
publisher = "China Ocean Press",
journal = "Journal of Hydrodynamics",
title = "Numerical modelling of supercritical flow in circular conduit bends using SPH method",
pages = "352-344",
number = "2",
volume = "29",
doi = "10.1016/S1001-6058(16)60744-8"
}
Rosić, N., Kolarević, M., Savić, L., Đorđević, D.,& Kapor, R.. (2017). Numerical modelling of supercritical flow in circular conduit bends using SPH method. in Journal of Hydrodynamics
China Ocean Press., 29(2), 344-352.
https://doi.org/10.1016/S1001-6058(16)60744-8
Rosić N, Kolarević M, Savić L, Đorđević D, Kapor R. Numerical modelling of supercritical flow in circular conduit bends using SPH method. in Journal of Hydrodynamics. 2017;29(2):344-352.
doi:10.1016/S1001-6058(16)60744-8 .
Rosić, Nikola, Kolarević, Milena, Savić, Ljubodrag, Đorđević, Dejana, Kapor, Radomir, "Numerical modelling of supercritical flow in circular conduit bends using SPH method" in Journal of Hydrodynamics, 29, no. 2 (2017):344-352,
https://doi.org/10.1016/S1001-6058(16)60744-8 . .
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