Abstract
Numerical calculation of wake field over SUBOFF submarine with full appendages was made in the paper based on STAR-CCM+. By comparing the computed results with the experimental data. The influence of prism layer mesh and turbulent model on the computed results was analyzed systematically. It is shown that, in the numerical calculation on submarine model wake field, the SST k- model is the relatively more suitable turbulent model, the thickness of prism layer mesh is equal or greater than 15mm, and the non-dimensional distance between the first computational mesh node and the model surface is need to be set in the range from 25 to 170. Moreover, numerical calculation of submarine wake field was made by using a sliding mesh. by refining mesh and reducing time step , the axial wake fraction was in good agreement with that computed by steady method.
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