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진의봉(U. B. Jin),주영석(Y. S. Joo),김시영(S. Y. Kim) 한국동력기계공학회 2004 한국동력기계공학회 학술대회 논문집 Vol.- No.-
The scale correction was analyzed for model to prototype with roughness effects in the pipe. The flow law of log and law of the wall were used by theoretical analysis to calculate the scale correction with surface roughness effects. For the surface roughness in the pipe flow for marine pipe fittings in boiler, heat exchange and the velocity field in the turbulent boundary layer on the wall is determined by scale for law of log and law of the wall. In this study, the calculation for the variation of diameter for roughness effects with variation velocity was investigated to design the facility of the ship. It was shown that the surface roughness effects in scale effects for model to prototype relation could be applied depending on scale ratio in model to prototype.