Vassilopoulos and Mandel 



0.2 

 



GRIM 



2.0 



3.0 



4.0 



5.0 





Fig. 66 - k^ versus S 



Table 3 

 Particulars of Ship Model Sections 



Figures 66-70 indicate first of all that the computer algorithm of Porter is 

 extremely accurate whereas that of Grim suffers from severe numerical break- 

 down, especially at high values of the non-dimensional frequency 



B* o) 



2g 



336 



