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DSD-INT 2015 - Recent application of Delft3D Flexible Mesh model to estuarine and river environments- Giselle Menel Lemos
The document discusses recent applications of the DFlow-FM model to riverine environments by Technital S.p.A. It summarizes two case studies: modeling works on the lower stretch of the Tagliamento River in Italy to address hydraulic and environmental issues, and an ongoing study of the Padua-Venice waterway project to update the waterway and assess scenarios regarding flood management and freshwater inputs to the Venice Lagoon. DFlow-FM was used to model scenarios, evaluate interventions, and assess hydrodynamic and water quality impacts.
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DSD-INT 2015 - Recent application of Delft3D Flexible Mesh model to estuarine and river environments- Giselle Menel Lemos
- 1. Thursday, November 05,2015 RECENT APPLICATIONS OF DFLOW-FM TO RIVERINE ENVIRONMENT G.T. Menel Lemos, A. Gozzi, E. Jeradi, A. Tittonel Next Generation River Modelling – 2015
- 2. • TECHNITAL S.p.A.is an Italian Engineering Company mainly working in Hydraulic, Marine, Environmental and Transport fields • The cooperation with Deltares started when it was still Delft Hydraulics, more or less in 90’s years • Many specialized studies have been developed together: the hydrodynamic, ecological and morphological studies and models of the Venice Lagoon (Italy) in relation with the MOSE project, the international Gran Port of Al Faw (Iraq), the interventions for the protection of the coast of Batumi (Georgia), etc. • In 2013 Deltares asked to Technital S.p.A. to participate to Beta Test activities of the DFlow-FM model, at that time under development. To test the possibilities of the new model, both under an hydrodynamic and water quality point of view, Technital applied the Dflow-FM model of the Lagoon of Venice, which results were presented at Deltares Software Days in 2013 (hydrodynamic) and 2014 (Water Quality) • Since then, Technital S.p.A., in agreement with Deltares, is applying DFlow-FM model to other projects, including in the riverine environment • In this presentation, some of the most significant recent applications (some under development) is reported INTRODUCTION 05/11/2015
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- 4. LOWER STRETCH OFTAGLIAMENTO RIVER: HYDRAULIC ISSUES 05/11/2015
- 5. LOWER STRETCH OFTAGLIAMENTO RIVER: HYDRAULIC ISSUES 05/11/2015
- 6. LOWER STRETCH OFTAGLIAMENTO RIVER: ENVIRONMENTAL ISSUES 05/11/2015
- 7. LOWER STRETCH OFTAGLIAMENTO RIVER: ENVIRONMENTAL ISSUES 05/11/2015
- 8. DESIGN PHASES Flood protection Designof interventions (High Return period event) Integration of interventions with environment Evaluations in «usual» conditions (Low Return period) Available data and studies Site surveys Hydraulic modelling Available data and studies Site surveys Environmental modelling Design of the intake structure Upgrading safety of Tagliamento river embankments Structural update of the Cavrato channel Environmental pre- assessment Master plan of impacted areas 05/11/2015
- 9. FIXED WEIR ADJUSTABLE WEIR DFLOW-FMMODEL – CAVRATO FLOODWAY INTAKE STRUCTURES 05/11/2015
- 10. DESIGN OPTIMIZATION In relation with flood protection MINIMIZATION OF RISE UP WATER LEVELS UPSTREAM In the stretch Cesarolo - Latisana 1. Minimization of flow discharged towards the lower stretch of Tagliamento 2. Optimization of the Intake structure minimization of backwater effects 05/11/2015
- 11. DESIGN OPTIMIZATION In relation with flood protection MINIMIZATION OF RISE UP WATER LEVELS UPSTREAM In the stretch Cesarolo - Latisana 1. Minimization of flow discharged towards the lower strect of Tagliamento 2. Optimization of the Intake structure minimization of backwater effects 3. By-pass of the Cesarolo bend 05/11/2015
- 12. DFLOW-FM MODEL -SCHEMATIZATION 05/11/2015
- 13. DFLOW-FM MODEL –SCHEMATIZATION – LATISANA AREA 05/11/2015
- 14. DFLOW-FM MODEL –SCHEMATIZATION – TAGLIAMENTO OUTLET 05/11/2015
- 15. DFLOW-FM MODEL –SCHEMATIZATION – CESAROLO NODE 05/11/2015
- 16. DFLOW-FM MODEL –SCENARIO WITH INTERVENTIONS 05/11/2015
- 17. DFLOW-FM MODEL –SCHEMATIZATION - VERTICAL LEVELS 05/11/2015
- 18. DFLOW-FM MODEL –SCENARIOS WITH BY-PASS - SCHEMATIZATION 05/11/2015
- 19. DFLOW-FM MODEL –STRUCTURES SCHEMATIZATION FIXED WEIR ADJUSTABLE WEIR 05/11/2015
- 20. DFLOW-FM MODEL DESIGNCONFIGURATION – SCENARIO06bis – 05/11/2015
- 21. DFLOW-FM MODEL DESIGNCONFIGURATION – SCENARIO06bis – 05/11/2015
- 22. DFLOW-FM MODEL DESIGNCONFIGURATION – SCENARIO06bis – 05/11/2015
- 23. DFLOW-FM MODEL DESIGNCONFIGURATION – SCENARIO06bis – 05/11/2015
- 24. DFLOW-FM MODEL DESIGNCONFIGURATION – SCENARIO06bis – 05/11/2015
- 25. DFLOW-FM MODEL DESIGNCONFIGURATION – SCENARIO06bis – 05/11/2015
- 26. SCENARIO01SCENARIO06-bis DFLOW-FM MODEL –SCENARIOS WITH BY-PASS - RESULTS 05/11/2015
- 27. DFLOW-FM MODEL –SCENARIOS WITH BY-PASS - RESULTS 05/11/2015
- 28. LOWER STRETCH OFTAGLIAMENTO RIVER: FURTHER DEVELOPMENTS • The preliminary design phase is concluded • In the next phase, further analyses are foreseen, including the morphological model of the Baseleghe Lagoon to verify the effects of the fluxes discharged by Cavrato during the Tagliamento river floods. 05/11/2015
- 29. THE PADUA –VENICE WATERWAY 05/11/2015
- 30. THE PADUA –VENICE WATERWAY The Venice Padua waterway is a project developed in 1970s and realised in part. Works were interrupted and the aim of the present project is to update it to the class V-a. Besides the waterway should: • Operate as floodway during Brenta river’s maximum fluxes (typically during Autumn and Spring seasons) • Allow to increase fresh water discharges into the Venice Lagoon (rivers diversed during 14th-15th centuries) Padua Venice 05/11/2015
- 31. THE PADUA –VENICE WATERWAY – THE COMPLETE SYSTEM Lagoon of Venice Adriatic sea Brenta river Novissimo channel Padua-Venice waterway 05/11/2015
- 32. THE PADUA –VENICE WATERWAY – HYDRAULIC ASPECTS Lagoon of Venice Padua-Venice waterway 05/11/2015
- 33. THE PADUA –VENICE WATERWAY – ENVIRONMENTAL ASPECTS 05/11/2015
- 34. 05/11/2015 Scenarios Evaluation of effects Waterway+ Venice lagoon present situation Waterway + Venice lagoon with Mobile barriers Configuration Waterway only Waterway + Brenta floodway (Q=350 m3/s or more) Increased input of fresh water Use assumptions Scenario 2 Scenario 1 Scenario 4 Scenario 3 Scenario 6 Scenario 5 THE PADUA – VENICE WATERWAY: STUDY SCENARIOS
- 35. DFLOW-FM – VENICELAGOON GENERAL MODEL 05/11/2015
- 36. DFLOW-FM – VENICELAGOON GENERAL MODEL 05/11/2015
- 37. DFLOW-FM – PADUA– VENICE WATERWAY MODEL 05/11/2015
- 38. DFLOW-FM - VELOCITYFIELD 05/11/2015
- 39. DFLOW-FM – BEDSTRESS 05/11/2015
- 40.
- 41. DFLOW-FM – WAQ– SUSPENDED SEDIMENT 05/11/2015
- 42. DFLOW-FM – WAQ– SUSPENDED SEDIMENT 05/11/2015
- 43. DFLOW-FM – WAQ– SUSPENDED SEDIMENT 05/11/2015
- 44. DFLOW-FM – WAQ– SUSPENDED SEDIMENT 05/11/2015
- 45. DFLOW-FM – WAQ– SUSPENDED SEDIMENT 05/11/2015
- 46. DFLOW-FM – WAQ– DEPOSITED SEDIMENTS 05/11/2015
- 47. PADUA-VENICE WATERWAY: FUTUREACTIVITIES • Survey campaigns to better define the loads (water and sediments) coming from the Brenta river • Focus on water/sediment quality • WAQ issues need long term analysis • Aggregation of the existing model (if possible…) or • New hydro model • less horizontal resolution • 3D effects investigation • Structures + RTC-Tools • Management of the locks and by-pass channels • Management of closures of mobile gates of the inlets during flooding events 05/11/2015
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