Abstract
The new use of ship's heat exhaust was proposed. Immersion surfaces of ship are heated by heat exhaust including relatively low temperature heat source, for example jacket cooling water. We examined the quantitative effect of heating of ship's bottom hull on drag reduction by flat plate model experiment. The flat plate incorporating electric heater was placed at circulating water channel, and the total resistance of model was estimated. The quantitative effect on drag reduction at turbulent flow region will be proportional to the ratio of heat output to water flow velocity within experimental condition.
