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Rapidly varying flow (RVF) in open channels is characterized by abrupt changes in flow depth over a short distance, with the rate of depth change relative to distance often approaching unity. These flows are inherently complex due to their transient and multi-dimensional nature, making exact analysis difficult. However, approximate solutions using simplified models provide valuable insights into their behavior.Key Features of Rapidly Varying FlowRVF is commonly observed in scenarios involving...
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Modelling of surface river plume using set-up and input data files of Delft-3D model.

Juan Gabriel Rueda-Bayona1, José Horrillo-Caraballo2, Tatiana R Chaparro1

  • 1Universidad Militar Nueva Granada, Engineering Faculty, Civil Engineering, Water and Energy (AyE) Research Group, Carrera 11 No.101- 80, Bogotá, Colombia.

Data in Brief
|July 10, 2020
PubMed
Summary

This data article provides essential files for modeling river plumes using a curvilinear nested grid. These resources aid in hydrodynamic analysis of river deltas, optimizing simulations and fieldwork.

Keywords:
CurrentsDelft3DHydrodynamicNumerical modellingSedimentsTidesWavesWind

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Area of Science:

  • Oceanography and Coastal Engineering
  • Computational Fluid Dynamics
  • Environmental Modeling

Background:

  • Modeling surface river plumes in complex environments like the Magdalena River delta presents challenges due to intense transport and intricate bathymetry.
  • Existing numerical models often face limitations with numerical schemes and stability, hindering efficient and validated simulations of river discharge into the ocean.

Purpose of the Study:

  • To present a set-up and input data package for modeling surface river plumes using a curvilinear nested grid in double-way mode.
  • To provide a reference dataset that facilitates hydrodynamic analysis of river deltas, thereby optimizing simulation efficiency and resource allocation.

Main Methods:

  • Development of a curvilinear nested grid model designed to accommodate natural river discharge into oceanic environments.
  • Implementation of a double-way mode for enhanced hydrodynamic simulation accuracy.
  • Creation of input data files specifically tailored for complex river delta bathymetry and transport processes.

Main Results:

  • A validated set-up and input data package for hydrodynamic modeling of river plumes.
  • Demonstrated utility in simplifying the simulation of river discharge into the ocean, overcoming common numerical challenges.
  • The dataset serves as a valuable reference for future hydrodynamic studies in similar environments.

Conclusions:

  • The provided dataset and model set-up offer a streamlined approach to simulating river plumes in complex deltas.
  • This resource is expected to optimize time and resources for researchers and aid in planning field measurement campaigns.
  • The data files reduce risks associated with personnel and instrumentation during fieldwork by enabling better-prepared expeditions.