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Title: Experimental methods for local-scale characterization of hydro-morphodynamic dam breach processes. Breach detection, 3D reconstruction, flow kinematics and spatial surface velocimetry
Authors: Amaral, S.
Viseu, T.
Ferreira, R. L.
Keywords: Dam breaching;Imaging techniques;LSPIV;3D reconstruction;Kinect sensor
Issue Date: Nov-2019
Publisher: Elsevier
Abstract: A set of tests on failure by overtopping of earth dams was performed under hydraulic and geotechnical controlled conditions in a medium-scale facility located at the Portuguese National Laboratory for Civil Engineering. The flow over the breaching dam is three-dimensional and exhibits several length scales. Instrumentation must be able to capture this complexity and scale amplitude and must be non-intrusive. This work presents a summary of the instrumentation layout as well as its main components and measuring methods that were used and/or developed to address these issues. The emphasis is placed on post-processing analysis of digital imagery, for which there is detailed exposition of the adopted methods and an evaluation of its suitability for its intended purpose.
Appears in Collections:DHA/NRE - Comunicações a congressos e artigos de revista

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