17 



Table 6. — Mass transport — Continued 



Table 6 lists comparative values of mass transport at various depths 

 for each of the waves studied. The measured values were obtained 

 as described in section 4. The theoretical values are given by Stokes' 

 theory as: 



Ut=k'a'Ce-'^'''-^ (10) 



Since mass transport in a closed tank is modified by a return flow 

 which results in zero and negative measured values of mass transport 

 in the bottom section of the tank, percentage comparisons are not 

 feasible. 



The data are presented graphically in Figures 8 and 9. 



Figure 8. 



