Wave Resistance 



length L = 25 feet, 

 breadth B =1.25 feet, 

 draft d = 1.5625 feet, 



and an equation of form 



1 



- B 



2 



1 - l^ 



Measurements over the range of Froude number 0.3-0.55 were analyzed. 



REFERENCES 



1. Hogben, N., "A Note on the Relation of a Wave Pattern and a Source Distri- 

 bution," Ship Div. TM No. 76 Dec. 1964 



2. Hogben, N., "A Computer Program for Correlating Measured Wave Patterns 

 with Theoretical Source Arrays," Ship Div. TM No. 189 Sept. 1967 



3. Hogben, N., "A New Method of Correlating Measured Wave Patterns with 

 Theoretical Source Arrays," Ship Div. TM No. 224 (in preparation) 



4. Everest, J.T., "Measurements of the Wave Resistance of a Series of Mathe- 

 matical Models including Comparison with Theoretical Estimates," Ship 

 Div. Rep. No. 120 (in preparation) 



Interaction of Free-Surface Waves with Viscous Wakes 



Jerome R. Lurye 



Control Data Corporation, TRG Division 



Melville, New York 



ABSTRACT 



A method of investigating the interaction of free-surface waves with 

 viscous wakes is described. The method consists in constructing a 

 viscous-wake solution to the Oseen equations that satisfies the three 

 linearized free-surface conditions appropriate to a viscous fluid. The 

 solution is characterized by a singularity which simulates approxi- 

 mately the effect of a body. More general flows of the same type can 

 be formed by superposition. The solution obtained is believed to be the 

 first one to represent explicitly a viscous wake in the presence of a 

 free surface. 



1560 



