Abstract
We develop a numerical method for simulating coupled interactions of complex floating structures with large-scale ocean waves and atmospheric turbulence. We employ an efficient large-scale model to develop offshore wind and wave environmental conditions, which are then incorporated into a high resolution two-phase flow solver with fluid–structure interaction (FSI). The large-scale wind–wave interaction model is based on a two-fluid dynamically-coupled approach that employs a high-order spectral method for simulating the water motion and a viscous solver with undulatory boundaries for the air motion. The two-phase flow FSI solver is based on the level set method and is capable of simulating the coupled dynamic interaction of arbitrarily complex bodies with airflow and waves. The large-scale wave field solver is coupled with the near-field FSI solver with a one-way coupling approach by feeding into the latter waves via a pressure-forcing method combined with the level set method. We validate the model for both simple wave trains and three-dimensional directional waves and compare the results with experimental and theoretical solutions. Finally, we demonstrate the capabilities of the new computational framework by carrying out large-eddy simulation of a floating offshore wind turbine interacting with realistic ocean wind and waves.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 144-175 |
| Number of pages | 32 |
| Journal | Journal of Computational Physics |
| Volume | 355 |
| DOIs | |
| State | Published - Feb 15 2018 |
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Keywords
- Fluid–structure interaction
- Large-eddy simulation
- Level set method
- Two-phase free surface flow
- Wave
- Wind
Cite this
Fluid–structure interaction simulation of floating structures interacting with complex, large-scale ocean waves and atmospheric turbulence with application to floating offshore wind turbines. / Calderer, Antoni; Guo, Xin; Shen, Lian; Sotiropoulos, Fotis.
In: Journal of Computational Physics, Vol. 355, 15.02.2018, p. 144-175.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Fluid–structure interaction simulation of floating structures interacting with complex, large-scale ocean waves and atmospheric turbulence with application to floating offshore wind turbines
AU - Calderer, Antoni
AU - Guo, Xin
AU - Shen, Lian
AU - Sotiropoulos, Fotis
PY - 2018/2/15
Y1 - 2018/2/15
N2 - We develop a numerical method for simulating coupled interactions of complex floating structures with large-scale ocean waves and atmospheric turbulence. We employ an efficient large-scale model to develop offshore wind and wave environmental conditions, which are then incorporated into a high resolution two-phase flow solver with fluid–structure interaction (FSI). The large-scale wind–wave interaction model is based on a two-fluid dynamically-coupled approach that employs a high-order spectral method for simulating the water motion and a viscous solver with undulatory boundaries for the air motion. The two-phase flow FSI solver is based on the level set method and is capable of simulating the coupled dynamic interaction of arbitrarily complex bodies with airflow and waves. The large-scale wave field solver is coupled with the near-field FSI solver with a one-way coupling approach by feeding into the latter waves via a pressure-forcing method combined with the level set method. We validate the model for both simple wave trains and three-dimensional directional waves and compare the results with experimental and theoretical solutions. Finally, we demonstrate the capabilities of the new computational framework by carrying out large-eddy simulation of a floating offshore wind turbine interacting with realistic ocean wind and waves.
AB - We develop a numerical method for simulating coupled interactions of complex floating structures with large-scale ocean waves and atmospheric turbulence. We employ an efficient large-scale model to develop offshore wind and wave environmental conditions, which are then incorporated into a high resolution two-phase flow solver with fluid–structure interaction (FSI). The large-scale wind–wave interaction model is based on a two-fluid dynamically-coupled approach that employs a high-order spectral method for simulating the water motion and a viscous solver with undulatory boundaries for the air motion. The two-phase flow FSI solver is based on the level set method and is capable of simulating the coupled dynamic interaction of arbitrarily complex bodies with airflow and waves. The large-scale wave field solver is coupled with the near-field FSI solver with a one-way coupling approach by feeding into the latter waves via a pressure-forcing method combined with the level set method. We validate the model for both simple wave trains and three-dimensional directional waves and compare the results with experimental and theoretical solutions. Finally, we demonstrate the capabilities of the new computational framework by carrying out large-eddy simulation of a floating offshore wind turbine interacting with realistic ocean wind and waves.
KW - Fluid–structure interaction
KW - Large-eddy simulation
KW - Level set method
KW - Two-phase free surface flow
KW - Wave
KW - Wind
UR - http://www.scopus.com/inward/record.url?scp=85034431847&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85034431847&partnerID=8YFLogxK
U2 - 10.1016/j.jcp.2017.11.006
DO - 10.1016/j.jcp.2017.11.006
M3 - Article
AN - SCOPUS:85034431847
VL - 355
SP - 144
EP - 175
JO - Journal of Computational Physics
JF - Journal of Computational Physics
SN - 0021-9991
ER -