中型内航高速船の船型改良

概要

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This paper describes the experimental results for improvement of the ship hull form for domestic transportation. The improvement method used here is a statistical method on wave making theory compiled from many model ship tank test results. The optimum frame line form was pursued by a transformation of the section form. As an initial hull form, a conventional coastal ship (A type) with a bulbous bow and transom stern was selected. The series of ship models were created by systematically changing the sectional area curves. The principal results are: (1) It was confirmed that the resistance coefficients, which were estimated by the statistical method, were similar to the results obtained from the tank tests. (2) The C type model had a 10% lower residuary resistance coefficient than the initial model (A type) and the DHP was lower by about 7%. (3) The improvement of the ship form (D type) using the wave profile measurement results was smaller than expected. Further improvement is necessary not only for experimental techniques but also for data analysis of the wave profile measurements. (4) The form factors, K, which were calculated by CFD, were 4% higher than the experimental results. (5) The ship models of the D type and E type, which had parallel bodies at the midships, had higher resistance coefficients than estimated by the statistical method.
独立行政法人海上技術安全研究所の論文
2000-05-31