Proper Orthogonal Decomposition of a Very High Concentrated Release of Sediment in Water: Spatio Temporal Patterns
Duc Hau Nguyen1, Sylvain Guillou2, Le Thi Thu Hien3, Quang Hung Nguyen4 

1Duc Hau Nguyen, Thuyloi University, Hanoi, 100000 Ha Noi, Vietnam.
2Sylvain Guiolou, Laboratoire Universitaire Des Sciences Appliquées De Cherbourg (EA4253), Université De Caen. Site Universitaire De Cherbourg, BP 78, 50130 Cherbourg-Octeville, France
3Le Thi Thu Hien, Thuyloi University, Hanoi, 100000 Ha Noi, Vietnam.
4Quang Hung Nguyen, Thuyloi University, Hanoi, 100000 Ha noi, Vietnam.

Manuscript received on 17 March 2019 | Revised Manuscript received on 22 March 2019 | Manuscript published on 30 July 2019 | PP: 2347-2353 | Volume-8 Issue-2, July 2019 | Retrieval Number: B3000078219/19©BEIESP | DOI: 10.35940/ijrte.B3000.078219
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Abstract: Proper Orthogonal Decomposition (POD) is based on a space and time decomposition and on the finding of eigenfunctions. It is a technique for recognizing or identifying key dominant features in data sets. The release of high sand concentrated in water induces a flow with particular structures as showed experimentally by Villaret et al. [1]. Two-phase flow simulations with no current were presented by Guillou et al. [2]. The present paper shows the POD-analyses of results of such a simulation with and without current. Two spatio-temporal fields, the solid volume fraction and the solid phase velocity within the sediment release coherent structures are successfully captured by applying Proper Orthogonal Decomposition on numerical simulation results..
Keywords: Dredged Sediment Release, Sediment Transport, two-Phase Flow Modelling, Fine Sand, Snapshot Proper Orthogonal Decomposition (POD).

Scope of the Article: Patterns and Frameworks