3D-Numerical Modeling of the Complex Flood Management System at Malvaglia Dam
OPEN ACCESS
Loading...
Author / Producer
Date
2024
Publication Type
Conference Paper
ETH Bibliography
no
Citations
Altmetric
OPEN ACCESS
Data
Rights / License
Abstract
The flood management system of the Malvaglia dam has undergone investigation via instationary 3D simulations conducted using OpenFOAM. Validation of the numerical model was successfully achieved through field measurements conducted by VAW. The primary objective was to delineate the discharge conditions of the system, comprising a surface discharge (a morning glory spillway) and two bottom outlets converging into the same pipe as the surface discharge, to determine the maximum discharge capacity of the system and assess potential enhancements to system safety. Simulations indicate that activation of the bottom outlets leads to at least partial stabilisation of outflow within the system. The significant instabilities observed in the outflow from the tunnel in situations without activated bottom outlets diminish notably with one bottom outlet in full operation and further decrease with both bottom outlets active. Additionally, in scenarios with both bottom outlets operational, negative pressures diminish until they are entirely absent under maximum load conditions (approximately 460 m3 /s).
Permanent link
Publication status
published
External links
Book title
Proceedings of the 10th International Symposium on Hydraulic Structures (ISHS 2024)
Journal / series
Volume
Pages / Article No.
374 - 383
Publisher
ETH Zurich
Event
10th International Symposium on Hydraulic Structures (ISHS 2024)
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
Morning Glory Spillway; Numerical Modeling; Validation through Prototype Measurements; Dam Safety
Organisational unit
03820 - Boes, Robert / Boes, Robert
Notes
Funding
Related publications and datasets
Is part of: https://doi.org/10.3929/ethz-b-000675921