際際滷

際際滷Share a Scribd company logo

Gallach sanchez belgian hydraulic days v1+

W
Waterbouwkundig Laboratorium

David Gallach-Sanchez (UGent) presenteerde de resultaten van schaalmodelonderzoek van golfoverslag bij kustwaterbouwkundige constructies met een steile helling en hoe deze resultaten gebruikt zijn als validatie van een recente golfoverslagformulering.

1 of 13
Download to read offline
Department of Civil Engineering Ghent University Experimental study of overtopping behavior of steep low-crested coastal structures David GALLACH-SNCHEZ, Peter TROCH, Andreas KORTENHAUS
Gallach sanchez belgian hydraulic days v1+
Gallach sanchez belgian hydraulic days v1+
Department of Civil Engineering Ghent University 4 ConclusionsIntroduction UG13 UG14Literature Experiments Wave overtopping concepts Literature review New experiments at Ghent University Dataset UG13 Dataset UG14
Department of Civil Engineering Ghent University 5 ConclusionsIntroduction UG13 UG14Literature Experiments Wave overtopping concepts q (average overtopping rate) Hm0 (Wave height) Tp (Wave period) (Slope angle) Rc (Freeboard)
Department of Civil Engineering Ghent University 6 Introduction ConclusionsUG13 UG14Literature Experiments EurOtop (2007) formula has a limited range of application q gHm0 3 = 0.2 exp 2.6 Rc Hm0 Not depending on slope angle Slope Relative freeboard Range of application Mild Steep Very steep Vertical wall Large Small Very small Zero Standard conditions Knowledge gap
Department of Civil Engineering Ghent University 7 Introduction ConclusionsUG13 UG14Literature Experiments Van der Meer & Bruce (2014) formula has an extended range of application q gHm0 3 = A exp B Rc Hm0 1.3 New! Depending on slope angle Range of application Slope Relative freeboard Mild Steep Very steep Vertical wall Large Small Very small Zero
Department of Civil Engineering Ghent University 8 Introduction ConclusionsUG13 UG14Literature Experiments There is still a knowledge gap to be covered Lack of overtopping data for (very) steep slopes Very few overtopping data for very small and zero freeboard No information about differences between deep water and shallow water overtopping performance Check on overtopping prediction formulae EurOtop (2007) Van der Meer & Bruce (2014)
Department of Civil Engineering Ghent University 9 Introduction ConclusionsUG13 UG14Literature Experiments To improve overtopping knowledge we performed tests at Ghent University
Department of Civil Engineering Ghent University 10 Introduction ConclusionsUG13 UG14Literature Experiments To improve overtopping knowledge we performed tests at Ghent University Overtopping box Based on the weigh cell technique Developed by Victor & Troch (2010)
Department of Civil Engineering Ghent University 11 Introduction ConclusionsUG13 UG14Literature Experiments UG13 and UG14 extend the knowledge towards steep low-crested structures UG13 UG14 Slopes Mild Vertical walls Mild Vertical walls Crest freeboard Large Zero Large Zero Water deepness Deep water Shallow water
Department of Civil Engineering Ghent University 12 Introduction ConclusionsUG13 UG14Literature Experiments UG13 and UG14 improve the overtopping knowledge EurOtop (2007) formula needs an update Van der Meer & Bruce (2014) formula fits well but underpredicts overtopping for zero freeboard Shallow water effects produce an increase of overtopping for large relative freeboards Next steps: Individual wave overtopping volumes of UG13 and UG14 More tests on shallow water conditions
Department of Civil Engineering Ghent University Experimental study of overtopping behavior of steep low-crested coastal structures David GALLACH-SNCHEZ, Peter TROCH, Andreas KORTENHAUS David.GallachSanchez@UGent.be

More Related Content

Gallach sanchez belgian hydraulic days v1+

  • 1. Department of Civil Engineering Ghent University Experimental study of overtopping behavior of steep low-crested coastal structures David GALLACH-SNCHEZ, Peter TROCH, Andreas KORTENHAUS
  • 4. Department of Civil Engineering Ghent University 4 ConclusionsIntroduction UG13 UG14Literature Experiments Wave overtopping concepts Literature review New experiments at Ghent University Dataset UG13 Dataset UG14
  • 5. Department of Civil Engineering Ghent University 5 ConclusionsIntroduction UG13 UG14Literature Experiments Wave overtopping concepts q (average overtopping rate) Hm0 (Wave height) Tp (Wave period) (Slope angle) Rc (Freeboard)
  • 6. Department of Civil Engineering Ghent University 6 Introduction ConclusionsUG13 UG14Literature Experiments EurOtop (2007) formula has a limited range of application q gHm0 3 = 0.2 exp 2.6 Rc Hm0 Not depending on slope angle Slope Relative freeboard Range of application Mild Steep Very steep Vertical wall Large Small Very small Zero Standard conditions Knowledge gap
  • 7. Department of Civil Engineering Ghent University 7 Introduction ConclusionsUG13 UG14Literature Experiments Van der Meer & Bruce (2014) formula has an extended range of application q gHm0 3 = A exp B Rc Hm0 1.3 New! Depending on slope angle Range of application Slope Relative freeboard Mild Steep Very steep Vertical wall Large Small Very small Zero
  • 8. Department of Civil Engineering Ghent University 8 Introduction ConclusionsUG13 UG14Literature Experiments There is still a knowledge gap to be covered Lack of overtopping data for (very) steep slopes Very few overtopping data for very small and zero freeboard No information about differences between deep water and shallow water overtopping performance Check on overtopping prediction formulae EurOtop (2007) Van der Meer & Bruce (2014)
  • 9. Department of Civil Engineering Ghent University 9 Introduction ConclusionsUG13 UG14Literature Experiments To improve overtopping knowledge we performed tests at Ghent University
  • 10. Department of Civil Engineering Ghent University 10 Introduction ConclusionsUG13 UG14Literature Experiments To improve overtopping knowledge we performed tests at Ghent University Overtopping box Based on the weigh cell technique Developed by Victor & Troch (2010)
  • 11. Department of Civil Engineering Ghent University 11 Introduction ConclusionsUG13 UG14Literature Experiments UG13 and UG14 extend the knowledge towards steep low-crested structures UG13 UG14 Slopes Mild Vertical walls Mild Vertical walls Crest freeboard Large Zero Large Zero Water deepness Deep water Shallow water
  • 12. Department of Civil Engineering Ghent University 12 Introduction ConclusionsUG13 UG14Literature Experiments UG13 and UG14 improve the overtopping knowledge EurOtop (2007) formula needs an update Van der Meer & Bruce (2014) formula fits well but underpredicts overtopping for zero freeboard Shallow water effects produce an increase of overtopping for large relative freeboards Next steps: Individual wave overtopping volumes of UG13 and UG14 More tests on shallow water conditions
  • 13. Department of Civil Engineering Ghent University Experimental study of overtopping behavior of steep low-crested coastal structures David GALLACH-SNCHEZ, Peter TROCH, Andreas KORTENHAUS David.GallachSanchez@UGent.be