Qrca.K poirft 



fO^-t) OS 



\^ Z/Z 



(i) Solution considering bottom ■friction 



LA 



1 





Va 





I , i^.O.60\ft60 



\o.40 



jo.ao 







L/2 



R, a 0.20 

 (ta") Solution considering la.tera.1 mixing 



Figure 33. Bowen's solutions for nearshore current circulations , (from Bowen, 

 1969b). 



out to give incorrect cell circulation sizes. It was also learned that 

 coupling the equations by including the wave-current interactions reduced 

 the magnitude of the rip currents. 



Most of the analytic solutions have been made by researchers interested 

 in theoretical means to predict rip current spacing. The eigenvalue free os- 

 cillation problem to determine rip current spacing is generally conducted as 

 outlined below. It was first made by Hino (1974). The latest efforts have 

 been by Dalrymple and Lozano (1978) and Miller (1977) (see also Miller and 

 Barcilon, 1978). The time-averaged horizontal motion equations and continuity. 



