Simulation of wave runup around offshore structures by a chimera domain decomposition approach
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A Reynolds-Averaged Navier-Stokes (RANS) numerical method has been employed in conjunction with a chimera domain decomposition approach for time-domain simulation of wave runup around offshore structures. Simulations were performed first for a simplified two-dimensional TLP configuration under two different incident wave conditions. The results are in very good agreement with the available data obtained from the particle image velocimetry (PIV) measurements. The method was then extended for the simulation of wave runup around single and multiple vertical cylinders. The simulation results clearly demonstrated the capability of the chimera RANS method for time-domain simulation of wave runup including both the viscous and fully nonlinear wave effects.
