Abstract
ABSTRACTThis paper presents the results of a numerical study of the surface pressure distribution in the waterjet intake section. The two‐dimensional Navier‐stokes equations are solved for the flow around a test boat hull with/ without the waterjet system using the Tokyo. University Modified Marker and Cell (TUMMAC V). A jet flow is imposed at the waterjet outlet to adjust the inlet flow. The calculated inlet pressure distribution Cp results are in agreement with published measurements for the case of 30 and 45 degree inlet configurations.Calculations are then made to examine the influence of the bottom lip fairing on the inlet Cp distribution with and without trim. The calculation results show the trim by the stern reduces the value of maximum Cp and results in a small increase in the waterjet energy interaction efficiency ηEI.
Published Version
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