Analysis of Ship-Side Wave Profiles 



[l] SMITH, A. M. O. , "Recent Progress in the Calculation of 



Potential Flows", Proceedings of the 7th ONR-Symposium on 

 Naval Hydrodynamics, Roma, 1969. 



[2] LANDWEBER, L. , and MACAGNO, M. , "Irrotational Flow 



About Ship Forms", Iowa Institute of Hydraulic Research, 

 The University of Iowa, IIHR Report n° 123, december 1969. 



[3] BRARD, R. , "The Neumann -Kelvin Problem for Surface 



Ships", Bassin d'Essais des Carenes, Report 11 CST, 

 January 1971 (unpublished). 



[4] LANDWEBER, L. , "Contributions on some Current Problems 



of Ship Resistance", May 1972, Paper prepared for the 

 NSMB 40th Anniversary Symposium (August 1972). 



[5] BRARD, R. , "The Representation of a Given Ship Form by 



Singularity Distributions when the Boundary Condition on the 

 Free Surface is Linearized", see Weinglum's issue of the 

 Journal of Ship Research (March 1972). 



REPLY TO DISCUSSION 



Kazuhiro Mori 



University of Tokyo 

 Tokyo, Japan 



1 . As to the empirical method 



The so-called n -correction has been proposed after quite 

 same considerations as you have mentioned. If we were to use the 

 kernel which depends on the speed of the ship, the calculations would 

 get very complicated , such a method is quite useful, as shown in our 

 paper, for hull form design. 



2. As to the discrepancy in the amplitude functions 



It is true that the B/L is not that large and wave-breaking 

 may not occur. You pointed out as a main reason for the discrepancy, 

 the effect of boundary layer, however we must remenber that the 

 wave -making resistance obtained from analyzed source agrees with 



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