Application of chimera RANS method for multiple-ship interactions in a navigation channel
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A Reynolds-Averaged Navier-Stokes (RANS) numerical method has been employed in conjunction with a chimera domain decomposition approach to compute the effects of moving ships on a ship moored next to a pier. For the simulation of ship-ship interactions, it is convenient to construct body-fitted numerical grids for each ship and the navigation channel separately. The numerical grids for the passing ships are allowed to move relative to the moored vessel. More than 40 time-domain simulations were carried out parametrically for different ship types, wharf line distances, ship speeds, and wind directions that are manifested in ship crabbing angles. The results of these computations were systematically organized and compared to investigate the ship speed effect, wind direction effect, wharf line distance effect, ship type effect, ship sheltering effect while there are more than two ships in the channel, bottom clearance effect, and the open water effect.