Abstract
A new method for designing propeller blade sections is presented. A vortex lattice method is used to evaluate the performance and the time-dependent pressure distribution on the blade surface in a non-uniform flow, while efficient optimization algorithms are used to modify the blade sections. Two different designs were carried out in this study. The first was a design to realize a target pressure distribution in a rotating three-dimensional flow. A two-dimensional wing theory was used to obtain the target pressure distribution. The predicted increase in efficiency and the reduction in the cavity volume were confirmed by model experiments. The second was a design to maximize the propeller efficiency. By this method, the propeller efficiency was improved by 1.2% under the constrains of constant thrust and a prescribed margin for face cavitation.
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Takekoshi, Y., Kawamura, T., Yamaguchi, H. et al. Study on the design of propeller blade sections using the optimization algorithm. J Mar Sci Technol 10, 70–81 (2005). https://doi.org/10.1007/s00773-005-0197-y
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DOI: https://doi.org/10.1007/s00773-005-0197-y