0303 高分子希薄水溶液の抵抗低減効果に及ぼす分子形態の影響(OS3-1 流れの抵抗低減,オーガナイズドセッション)

概要

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Ship is an efficient transportation system in terms of ton-mile base energy consumption. Friction between ship's hull and sea water is considered to be the major source of ship's propulsion resistance as sharing 50-80% of the total resistance. Since the ship's hull in contact with sea water is usually coated with paints, development of low friction paints would lead to a significant reduction in the propulsion resistance of vessels and eventually to substantial energy saving. Toms effect is well known as the phenomenon whereby extremely dilute solutions of high-molecular-weight polymers exhibit much lower frictional resistance than the pure solvent. Application of Toms effect to water surrounding the ship may reduce substantially the propulsion drag by addition of effective polymer to ship hull paints. In this study, drag reduction characteristics of different polymer solutions are investigated to select the most appropriate polymer for the developing low friction paint.
社団法人日本機械学会の論文
2009-11-06