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| Optimized hybrid model for coastal safety assessment: source generation in DualSPHysics model, 2nd‐year progress report Suzuki, T.; Altomare, C.; Peeters, P.; Mostaert, F. (2017). Optimized hybrid model for coastal safety assessment: source generation in DualSPHysics model, 2nd‐year progress report. Version 2.0. FHR reports, 15_009_2. Flanders Hydraulics Research: Antwerp. VI, 5 + 42 p. app. pp.
Deel van: FHR reports. Flanders Hydraulics Research: Antwerp, meer
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| Beschikbaar in | Auteurs |
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| Documenttype: Projectrapport | |
| Trefwoorden |
Numerical modelling Reflection > Wave reflection |
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| Abstract |
Main aim of the first year was the implementation of an efficient, simple and accurate wave generation, wave absorption technique and active wave absorption system (AWAS) in DualSPHysics code as stand-alone model. DualSPHysics model is now able to generate both long-crested monochromatic and random waves with a piston-type wavemaker. The 1st year research reveals that AWAS is effective for monochromatic and random waves. On the other hand AWAS is based on linear theory, therefore it is theoretically not applicable to the region where non-linearity is dominant, e.g. breaking zone. However, to decrease computational cost of the coupling model, the coupling point needs to be in the breaking zone (e.g. coupling point closer than -5 m TAW point). In order to tackle this problem, we explored the applicability of "wave absorption for hybridization" (AWAS-hy) method in the 2nd year research. In this report, the implementation and validation results are presented. In the validation, it was concluded that the source generation method (SG) based on Ni and Feng (2013) is applicable to the most critical condition (highly reflective condition). This report summarizes the 2nd year research and gives suggestions for the 3rd year research. |
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