. The collected papers of Sir Thomas Havelock on hydrodynamics. Ship resistance; Water waves; Hydrodynamics. THE APPROXIMATE CALCULATION OF WAVE RESISTANCE AT HIGH SPEED 57 plan would be to take sections giving equal diflferences of sectional area, and this would lighten the numerical work to some extent. On the other hand, it would be possible to locate the sections so that the sources were for the most part in fixed positions relative to the length of the model, and such a scheme would have the great advantage of allowing of tabulation of the sine and cosine terms in advance. Obviously any s
. The collected papers of Sir Thomas Havelock on hydrodynamics. Ship resistance; Water waves; Hydrodynamics. THE APPROXIMATE CALCULATION OF WAVE RESISTANCE AT HIGH SPEED 57 plan would be to take sections giving equal diflferences of sectional area, and this would lighten the numerical work to some extent. On the other hand, it would be possible to locate the sections so that the sources were for the most part in fixed positions relative to the length of the model, and such a scheme would have the great advantage of allowing of tabulation of the sine and cosine terms in advance. Obviously any scheme which permits tabulation and systematic procedure in the computation would not only give greater accuracy in the calculations but would make it possible to extend their range of application. As a general conclusion from the present work it may be said that, although the method needs further testing and systematizing, it indicates a possibility of calculating wave resistance from the plans of the model, at least for high speeds ; and that the results so obtained would agree fairly well with those that could be calculated from the usual integrals if the lines of the model were given by mathematical equations. If this should prove to be the case, it would be possible to have a greater variety of form in experimental models, so pro- viding more material for comparison between theory and experiment and giving ultimately a better basis for application of the calculations ia practice. Fig. 1—see next Fig. 1—Model A. 13-57' x 1-28' X 0-434'. Displt. 259-4 lb. coeflft. 0-775. Prism, coeffl. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Havelock, Thomas, Sir, 1877-. Washington, Office of Naval Research, Dept. of the Navy; for sale by the Superintendent of Documents, U. S. Govt. Print. Of
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Keywords: ., bookcentury1900, bookcollectionbiodive, booksubjecthydrodynamics
