DIRECT DRAWING OF THE LINES OF FLOW, ETC. 



53 



I - K 



Fig. 51. Effect of combined wave-motion and motion of translation. 



A. Pure wave-motion. 



B. Translation parallel to wave-ridges. 



C. Translation normal to wave-ridges. 



D. Translation oblique to wave-ridges. 



E. Stronger translation normal to wave-ridges. 



F. Stronger translation oblique to wave-ridges. 



G. Still stronger translation normal to wave-ridges. 

 H. Still stronger translation oblique to wave-ridges. 

 I. Still stronger translation normal to wave-ridges. 

 K. Still stronger translation oblique to wave-ridges. 



