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Investigación de vangarda para o desenvolvemento sostible

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Investigación de vangarda para o desenvolvemento sostible

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2024

Ouro, Pablo; Cea-Gómez, Luis; Croquer, Sergio; Dong, Wenhao; García-Feal, Orlando; Navas-Montilla, Adrián; Rogers, Benedict D.; Uchida, Tatsuhiko; Juez, Carmelo

Benchmark of computational hydraulics models for open-channel flow with lateral cavities Journal Article

In: Journal of Hydraulic Research, vol. 62, no. 5, pp. 441–460, 2024, ISSN: 0022-1686, (_eprint: https://doi.org/10.1080/00221686.2024.2401905).

Abstract | Links | BibTeX | Etiquetas: Benchmark, computational hydraulics, large-eddy simulation, lateral cavities, Reynolds-averaged Navier–Stokes, shallow water model, SPH

@article{ouro_benchmark_2024,

title = {Benchmark of computational hydraulics models for open-channel flow with lateral cavities},

author = {Pablo Ouro and Luis Cea-Gómez and Sergio Croquer and Wenhao Dong and Orlando García-Feal and Adrián Navas-Montilla and Benedict D. Rogers and Tatsuhiko Uchida and Carmelo Juez},

url = {https://doi.org/10.1080/00221686.2024.2401905},

doi = {10.1080/00221686.2024.2401905},

issn = {0022-1686},

year  = {2024},

date = {2024-09-01},

urldate = {2026-07-28},

journal = {Journal of Hydraulic Research},

volume = {62},

number = {5},

pages = {441–460},

publisher = {Taylor & Francis},

abstract = {Computational models in hydro-environmental engineering are diverse in their background formulation and span from two-dimensional depth-averaged shallow water models, to complex fully three-dimensional turbulence models resolving large-eddy simulation with surface capturing techniques, and to Lagrangian particle-based methods. This paper presents a first-of-its-kind comparison of six different computational hydraulics fluid dynamics models, namely Iber+, HO-SWM, GBVC, OpenFOAM (RANS), Hydro3D (LES) and DualSPHysics (SPH), in the prediction of mean velocities and free-surface dynamics in two benchmarks involving open-channel flows with symmetric lateral cavities. Results show that shallow-water models capture relatively well the main large-scale coherent structures of the in-cavity flow, with wider shear layers compared to three-dimensional models, and higher velocities in the main channel. Three-dimensional RANS, LES and SPH yield improved predictions of mean velocities compared with experimental data. Computational cost has been quantified for all models with a logarithmic growth when increasing model complexity. The transverse standing wave is captured by most models, with the shallow-water ones matching the theoretical value, while the three-dimensional models overestimate it slightly.},

note = {_eprint: https://doi.org/10.1080/00221686.2024.2401905},

keywords = {Benchmark, computational hydraulics, large-eddy simulation, lateral cavities, Reynolds-averaged Navier–Stokes, shallow water model, SPH},

pubstate = {published},

tppubtype = {article}

}