1 / 24

EXPERIMENTS ON EXTREME WAVE GENERATION BASED ON SOLITON ON FINITE BACKGROUND

EXPERIMENTS ON EXTREME WAVE GENERATION BASED ON SOLITON ON FINITE BACKGROUND. René Huijsmans(MARIN) Gert Klopman (AFR) Natanael Karjanto,Brenny van Groesen (U Twente) Aan Andonowatti (ITB). OUTLINE Introduction Soliton on finite Background Results of Experiments

galia
Télécharger la présentation

EXPERIMENTS ON EXTREME WAVE GENERATION BASED ON SOLITON ON FINITE BACKGROUND

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. EXPERIMENTS ON EXTREME WAVE GENERATIONBASED ON SOLITON ON FINITE BACKGROUND René Huijsmans(MARIN) Gert Klopman (AFR) Natanael Karjanto,Brenny van Groesen (U Twente) Aan Andonowatti (ITB)

  2. OUTLINE Introduction Soliton on finite Background Results of Experiments Analysis with 2-D non-linear potential code and sNLS Conclusions

  3. Spatial NLS equation Free-surface elevation with: Where and are the carrier wave number and frequency Spatial NLS equation:

  4. Spatial NLS coefficients: with and and are the bound long-wave amplitude coefficients

  5. Physics of SFB van Groesen, A, N. Karyanto SOLITON ON FINITE BACKGROUND (SBF) as a solution of (spatial) NLS Amplitude amplification 3 + cc 1 Phase singularity Parameters of SBF t

  6. A snapshot of wave elevation under Maximum Temporal Amplitude (MTA)curve MTA LARGE AMPLITUDE Location of wave maker typical wave tank, 250m long 0 L

  7. EXPERIMENTAL CASES EXPERIMENTS A: DEPTH H0 = 3.55m, various EXPERIMENTS B: DEPTH H0 = 3.55m, various • EXPERIMENTS C: DEPTH H0=3.55m, various • Main Characteristics • CASES TO BE PRESENTED C2M2 C2M0

  8. Overview of Experimental Test Set-Up

  9. Prediction of focus point: 150m from the wave maker C2M2 10m 40m 100m

  10. Prediction of focus point: 150m from the wave maker C2M2 10m 150m 160m

  11. C2M2 150m In between 2 peaks: 11 waves 160m

  12. 150m 150m 160m 160m

  13. ANALYSIS With HUBRIS/sNLS

  14. ANALYSIS With HUBRIS

  15. ANALYSIS With HUBRIS/sNLS

  16. ANALYSIS With HUBRIS

  17. ANALYSIS With HUBRIS/sNLS

  18. ANALYSIS With HUBRIS

  19. Conclusions MTA approach good basis for predicting Focus point Phase singularity clearly present at one side of the wave group Non-linear potential flow code and sNLS partly predicts the evolution of the SFB soliton

More Related