التفاصيل البيبلوغرافية
| العنوان: |
Numerical estimation of wave loads on crest walls on top of rubble mound breakwaters using OpenFOAM |
| المؤلفون: |
Irias Mata, Marisol (author) |
| المساهمون: |
Antonini, A. (mentor), van Gent, M.R.A. (graduation committee), Zijlema, Marcel (graduation committee), van der Lem, Cock (graduation committee), Boersen, Stef (graduation committee), Jansen, Bjarne (graduation committee), Delft University of Technology (degree granting institution) |
| سنة النشر: |
2021 |
| المجموعة: |
Delft University of Technology: Institutional Repository |
| مصطلحات موضوعية: |
OpenFOAM, waves2FOAM, Rubble mound breakwater, crown wall loading, Tetrapods, Breaking wave impact |
| الوصف: |
The design of hydraulic structures like breakwaters and crest walls is often based on empirical formulations, physical models test, numerical models and a fair amount of expert judgement. Each technique has its own pros and cons. The main limitation of the empirical formulas is that often they have to be applied outside their range of validity. Physical modelling also has its own shortcomings. When breaking waves hit the structure, the location of the maximum pressures is still not well known due to the high spatial variability. By using an array with low spatial resolution, the forces estimated in the physical ume will usually underestimate to some extent the actual forces experienced by the wall (Ramachandran et al., 2013). In the last decades, numerical modelling has become an attractive alternative in simulating wave-structure interactions. Nevertheless, estimating loads on crest walls in the numerical ume is still at its early stages. On that account, the present work validates the prediction of wave induced forces on the front face of crest walls on top of rubble mound breakwaters in CoastalFOAM. A scale model of the Holyhead breakwater, located in Wales, is used. The key validation topics are the reproduction of wave-structure interaction when heavily breaking waves reached the wall, the evaluation of the ventilated boundary condition implemented by Jacobsen et al. (2018), the porous ow inside the armour layer formed by Tetrapods units and whether the simplication of not using a turbulence model, as done by Jensen et al. (2014) and Jacobsen et al. (2018), is also valid under heavily breaking waves. Four validation cases were used to test the capabilities of the numerical ume. The results conrm that it is possible to accurately reproduce the wave conditions and the wave induced forces from a physical modelling campaign. Overall, the CoastalFOAM model is able to capture the shape and the order of magnitude of the force events. A calibrated model predicts the highest wave induced forces (forces with an ... |
| نوع الوثيقة: |
master thesis |
| اللغة: |
English |
| Relation: |
http://resolver.tudelft.nl/uuid:36b66c90-dfdb-41d0-b1f2-1253d3f87b4c |
| الاتاحة: |
http://resolver.tudelft.nl/uuid:36b66c90-dfdb-41d0-b1f2-1253d3f87b4c |
| Rights: |
© 2021 Marisol Irias Mata |
| رقم الانضمام: |
edsbas.94BE21DC |
| قاعدة البيانات: |
BASE |