進水時尾道水道対岸付近の潮位変化

概要

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When launching a medium size vessel, considerably big in comparison with narrow Onomichi Channel, it is necessary to know whether the launching will cause any damage to the opposite side with the waves and rising sea water or not, in addition to the study of inherent many problems involved in safe launching. To investigate the probable effects caused by launching, the authors carried out experiments using models in parallel with measuring the effects caused by the several cases of actual launching. Then, the authors realized the values of the rising water level at every experiment and actual launching came to almost the same tendency, and this enabled us to figure out certain ratios at several places where damage might happen. Thus, the following formula which shows the maximum rising water level caused by launching has been developed. H_w^2=C{1.42+0.00165(x-200)}×0.202×10^<-13>×(14.0-d)d^3B^3V_s^4×e^<(54.8-5.81(x-200)(3500-4x)×10^<-5>)/(14.0)> H_w: Max. rising waters level (m) C: Coefficient at several places where damage might happen. x: Distance from end of berth to each place (m) d: Max. aft draught (m) V_s: Max. launching speed (m/s)
社団法人日本船舶海洋工学会の論文
1967-02-28