Emphasizes principal difficulty of model work in practical incompatibility of Froude and Reynolds' laws of similarity; shows that experiment work on frictional resistance of planks must be used to predict ship resistance from model and refers to recent work on resistance of long pipes; also to recent tests on Hapag liner Hamburg, in which, by means of special resistance ports let into vessel's sides amidships, frictional resistance of outer surface could be directly measured; these results clearly confirm results of pipe experiments; deals with scale effect of model propellers, tests on wake distribution behind solids of revolution of varying degrees of run fullness; effect of slope of after-body sections on wake and thrust deduction. See brief translated abstract in Mar. Engr. and Motorship Bldr., vol. 50, no. 594, Feb. 1927, p. 78.
Recent experiment tank researches
Neuere Erfahrungen im Schiffbau-Versuchswesen
Werft-Reederei-Hafen ; 7 , n 23
1927
6 pages
5 Figs.
Article (Journal)
German
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