UNCLASSIFIED 



SECURITY CLASSIFICATION OF THIS PAGE 



(Block 19 continued) 



transverse waves, can be found. Numerical results for a simple bow form show that the 

 inner region is quite narrow, and that the wavelength of the divergent waves at the 

 boundary of the inner region is of the order of 1 to 20 cm, depending on the speed of 

 the ship. These results appear to be consistent with the narrow V-wakes observed in 

 some SAR images of ship wakes. The analysis presented in this study may thus provide a 

 partial explanation for these observations. However, the small wavelengths mentioned 

 above indicate that the divergent waves in the vicinity of the track of the ship are 

 likely to be significantly altered by surface tension, which should therefore be included 

 in a more realistic analysis. 



UNCLASSIFIED 



