6. Widerstandsuntersuchungen an scharfen Schiffsformen. Schiffbau 36 (1935), 355- 

 359, 408-413. 



7. Die Theorie der Wulstschiffe. Schiffbau 37 (1936), 55-65. 



8. Wellenwiderstand auf beschranktem Wasser. JSTG 39 (1938), 266-291. 



9. Schiffsform und Widerstand. Schiffbau 40 (1939), 27-33, 46-51, 66-70. 



10. Analysis of wave resistance. TMB Rpt. No. 710 (1950), 102 pp. 



11. A systematic evaluation of Michell's integral. TMB Rpt. 886 (1955), 59 pp. 

 Weinblum, Georg P.; Kendrick, Janet J.; and Todd, M. Allison. 



1. Investigation of wave effects produced by a thin body — TMB Model 4125. TMB 

 Rpt. 840 (1952), 14 pp. 



Wigley, W. C. S. 



1. Ship wave resistance. Proc. Third Internat. Congr. Appl. Mech., Stockholm, 1930, 

 pp. 58-73. 



2. Ship wave-resistance. Progress since 1930. Trans. INA 77 (1935), 223-236 (plates 

 XXVI, XXVII); discussion 237-244. 



3. L' etat actuel des calculs de resistance de vagues. Bull. Assoc. Tech. Mar. Aero. 48 

 (1949), 513-545. 



4. Ship wave resistance. A comparison of mathematical theory with experimental re- 

 sults. I, II. Trans. INA 68 (1926), 124-137 (plates No. X, XI); discussion 137-141; 

 69 (1927), 191-196 (plate No. XVIII); discussion 196-210. 



5. Ship wave resistance. Some further comparisons of mathematical theory and ex- 

 periment result. Trans. INA 72 (1930), 216-224 (plates XXIV, XXV); discussion 

 224-228. 



6. Ship wave resistance. An examination of the speeds of maximum and minimum 

 resistance in practice and in theory. Trans. NECIES 47 (1931), 153-180 (plates 

 II-VI); discussion 181-196 (plate VII). 



7. The theory of the bulbous bow and its practical application. Trans. NECIES 52 

 (1936), 65-88 (plate I). 



8. Effects of viscosity on the wave-making of ships. Trans. Inst. Engrs. Shipbldrs. in 

 Scotland 81 (1938), 187-208 (1 plate); discussion 208-215. 



9. Calculated and measured wave resistance of a series of forms defined algebraically, 

 the prismatic coefficient and angle of entrance being varied independently. Trans. 

 INA 84 (1942), 52-71; discussion 72-74. 



10. Comparison of calculated and measured wave resistance for a series of forms not 

 symmetrical fore and aft. Trans. INA 86 (1944), 41-56; discussion 57-60. 

 Wigley, W. C. S.; and Lunde, J. K. 



1. Calculated and observed wave resistance for a series of forms of fuller midsection. 

 Trans. INA 90 (1948). 92-104; discussion 104-110. 



DISCUSSION 



T. B. Benjamin 



I should like to mention briefly some aspects of wave resistance which I have 

 examined recently, both theoretically and by way of some experiments with the water 

 channel belonging to the Engineering Department of Cambridge University. An account 

 of this work has already appeared 1 , but so recently that I may be justified in outlining 

 some of it now. It seems to be appropriate to the present discussion, although I fear 

 it is rather far removed from Professor Wehausens topic. 



The study was confined to two-dimensional flow along a straight horizontal 

 channel, and was concerned with the effects of placing various rigid obstacles in the 



1 J. Fluid Mech. 1, 227. (1956) 



133 



