O modelo Swan-Veg como ferramenta útil na previsão de ondas em reservatórios de barragens

Mattosinho, Germano de Oliveira; Maciel, Geraldo de Freitas; Vieira, Adriana Silveira

doi:10.34117/bjdv5n7-075

Cited by 2 publications

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“…For these reasons, it has become increasingly important to develop methodologies and tools capable of forecasting and monitoring wind waves in reservoirs and stretches of waterway. In this sense, controlling the level of agitation of the reservoir's free surface and its effects on fixed or mobile structures and banks is, in fact, an essential element in building a basis for a future warning system [8,[14][15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Deterministic Modeling and Uncertainty Quantification of Wind Waves in Ilha Solteira dam Reservoir, Brazil

Mattosinho,

Ferreira,

Maciel

2024

Preprint

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Deterministic simulations using the SWAN model were conducted along a stretch of the Tietê-Paraná waterway in the Ilha Solteira dam reservoir, São Paulo, Brazil, to assess the water waves generated by winds. Simultaneously employs a probabilistic metamodeling approach (PCE) and Sobol indices, to quantify uncertainty of the five involved physical parameters (wind velocity and direction, bottom friction (JONSWAP), whitecapping and depth-induced breaking index). In the deterministic part, Janssen’s formulation yielded the most successful and accurate estimations of wave heights. Probabilistic analysis underscored the importance of wind data and the whitecapping parameter in model calibration, with a significant influence of wind speed indicated by Sobol indices. The results not only refined the model calibration process, but also allowed the creation of contour maps for wave height and period that offer practical pre-project applications. This work advances understanding of wind wave hydrodynamics deterministically and probabilistically, with good concordance and performance indices compared to field data, despite being scarce.

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Section: Introductionmentioning

confidence: 99%

Deterministic Modeling and Uncertainty Quantification of Wind Waves in Ilha Solteira dam Reservoir, Brazil

Mattosinho,

Ferreira,

Maciel

2024

Preprint

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show abstract

“…For these reasons, it has become increasingly important to develop methodologies and tools capable of promoting the forecasting and monitoring of wind waves in reservoirs and stretches of waterways. In this sense, the control over the reservoir's free surface agitation level and its effects on fixed or mobile structures and on the margins is indeed an essential element in the construction of a basis for a future alert system (Diebold & Heller, 2017;Marques & Andrade, 2017;Mattosinho et al, 2018;Różyński, 2018;Jalil et al, 2019;Li et al, 2019;Mattosinho et al, 2019;Holanda et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Meteorological-hydrodynamic model coupling for safe inland navigation of waterway stretches in dam reservoirs, using a scarce database

Mattosinho

Maciel

Ferreira

et al. 2022

RBRH

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The SWAN (Simulating WAves Nearshore) numerical model has been used and validated in numerous studies of open coastal and estuarine regions. Its application on inland or restricted waters (dam reservoir) is not only innovative and challenging, but also an important scientific contribution, filling a gap in the literature. We analyze the performance of the SWAN in the characterization of the agitation caused by the action of wind waves in the reservoir of the Ilha Solteira dam, considering measured wind velocities and a complex bathymetry. The studied area is close to a segment of the Tietê-Paraná waterway, in Brazil. Wind conditions were obtained by a 2D sonic anemometer installed in the reservoir during one of the measurement campaigns, for a period of 3 months. The estimates of the amplitude of waves generated in the reservoir were compared with measurements of the free surface elevation obtained by a Druck pressure sensor installed in the reservoir of the dam, about 300 m from the margin (already in intermediate/deep waters), and 1.0 m deep. The results obtained (amplitudes and wave periods) were shown to be promising and, albeit with significative heights overestimated, could be used for engineering preliminary drafts.

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O modelo Swan-Veg como ferramenta útil na previsão de ondas em reservatórios de barragens

Abstract: O modelo swan-veg como ferramenta útil na previsão de ondas em reservatórios de barragens The swan-veg model as a useful tool in the prediction of waves in dam reservoirs

Cited by 2 publications

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Deterministic Modeling and Uncertainty Quantification of Wind Waves in Ilha Solteira dam Reservoir, Brazil

Deterministic Modeling and Uncertainty Quantification of Wind Waves in Ilha Solteira dam Reservoir, Brazil

Meteorological-hydrodynamic model coupling for safe inland navigation of waterway stretches in dam reservoirs, using a scarce database

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