Table 2. Summary of mathematical models for shoreline evolution. 



offshore TTie. 



Experimental Appli 



Very saall angle 



Small angle (-:25 ) 



Groins-sudden dump 



Nonlinear differential No 



Forms of delt 



Groins-sudden dump 

 sinusoidol undulatii 

 equilibrium shape 



in 2a implied Smalt and large 



Cylindrical system of No 



Small angle 

 o<tano<1.23 

 large angle 

 1.23<tana<» 



Nonlinear differentia 

 equations. 



Forms of delt 



1968 Bakker 



Very small angle 



System of linear differ- 

 ential equations 



2) closed-fom solution 

 J) closed- form 



1972 Price, 

 WiHis 



Ntimrical method based 

 on Pelnard-Considere 

 (19S6) 



Small angle 



Numerical method ba: 

 on Pelnard-Considop 

 (1956) 



C renul at ed- shaped 

 b.). or spiral 

 beaches 



1972 Leblond Proportional to Small angle 

 (radiation- stress) 



Numerical method 



Spiral beaches 



1973 Komar 



Numerical method 



Growth of delt 



1976 Itulsbergen, sin 2a 



Numerical method b. 

 fraction-diffract ii 



Mathematical and 



50 



