Research on CFD calculation of ship navigation in shallow narrow area
In order to accurately predict the navigation law of large ships in shallow water and narrow areas,CFD cal-culation method and STAR-CCM+software are applied to solve RANS equation,identify simulation elements,build simula-tion models,and establish hydrodynamic models for sailing ships for numerical simulation.The changes of ship resistance and subsidence with speed under different channel widths and water depths are obtained.In order to verify the accuracy of the numerical simulation,the software simulation calculation results were compared with the ship model test results,and the research results showed that:The calculation results of the simulated ship resistance and subsidence are in good agreement with the ship model test data,and the error is controlled within 7％.The simulation calculation method on the STAR-CCM+platform can quickly and accurately predict the ship's hydrodynamic performance and navigation law,and provide theoretic-al support and reference for the subsequent design of navigable tunnels.Under the premise of ensuring the accuracy of STAR-CCM+simulation examples,the influence of different channel water depth and channel width on ship navigation un-der different speed is obtained,and the safe speed range of ships passing through the water area is proposed.
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