Fbrictional resSstamce of a pris 皿 atic mode1 at high adva 皿 ced g . peed iS measured for four trim angles , and compa = ed with o 皿 e for a fiat p 蓋 ate . The measured frictional resistance coef 丑cients are higher than Schoenherr Iine } a皿 d depend on trim a 皿 gle a皿 d Re . The flow on the bettom of model is estimated by the fiow around a corner , and the frictional resistances for unif ( )rm flow a 皿 d accelerated 且ow are calculated by tlle bou皿 dary layer theory . The difference of both c 副

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... ulated frictional resistances is sma1L The high frictional resistance occurs on the high average 且ow on the bottom .