Benchmarking of the Iber Capabilities for 2D Free Surface Flow Modelling

Cea, Luis; Bladé, Ernest; Sanz-Ramos, Marcos; Fraga, Ignacio; Sañudo, Esteban; García-Feal, Orlando; Gómez-Gesteira, Moncho; González-Cao, José

Use this link to cite:

http://hdl.handle.net/2183/24588

Benchmarking of the Iber Capabilities for 2D Free Surface Flow Modelling

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Cea_Luis_2020_Benchmarking_Iber.pdf (3.68 MB)

Identifiers

URI: http://hdl.handle.net/2183/24588

DOI: 10.17979/spudc.9788497497640

Publication date

2020

Authors

Cea, Luis

Bladé, Ernest

Sanz-Ramos, Marcos

Fraga, Ignacio

Sañudo, Esteban

García-Feal, Orlando

Gómez-Gesteira, Moncho

González-Cao, José

Abstract

[Abstract] Iber is a software for simulating turbulent free surface unsteady flow and transport processes in shallow water flows. The hydrodynamic module of Iber solves the depth averaged two-dimensional shallow water equations (2D Saint-Venant Equations). This document presents the performance of the software Iber in a series of two-dimensional modelling benchmark tests. Some of these tests were developed by the United Kingdom Joint Defra / Environment Agency under Defra’s Flood and Coastal Erosion Risk Management R&D program, and have been used to benchmark other 2D free surface flow models, as the 2D version of HEC-RAS.

Description

CONTENTS: 1. Introduction; 2. Test 1: Flooding a disconnected water body; 3. Test 2: Filling of floodplain depressions; 4. Test 3: Momentum conservation over a small obstruction; 5. Test 4: Speed of flood propagation over an extended floodplain; 6. Test 5: Valley flooding; 7. Test 6: Dambreak; 8. Test 7: Rainfall and point source surface flow in urban areas; 9. Test 8: Overland flow in a four-branch junction; 10. Test 9: Rainfall-runoff in a three-slope 1D channel; 11. Test 10: Rainfall-runoff over a simplified V-shaped valley; 12. Test 11: Rainfall-runoff over a simplified urban configuration; 13. References.