Fi'ograiii Descriplioii 



Program Title 105R-41CV Wave Transmission - Fuchs' Equation (RPN Logic) 

 Name T.L- Walton, Jr. Date 1/82 



Address Coastal Engineering Research Center 



Kingman Building „ , .« , 



C"y ^„_! ^„.,„,.„ ^ state _.„_,^,_ Z.pCode 



Virginia 



22060 



Program Description, Equations, Variables, etc. 



This algorithm computes wavelength, L, in water depth, d, given the wave 

 period, T. The program then computes wave transmission over a thin verti- 

 cal barrier in water depth, d, using Fuchs' equation: 



1 - 



4Trh , . , 4iTh 

 — 1- smh — — 



Atrd 

 L 



+ sinh 



4TTd 



L 



where Kt is the transmitted wave height, H^ the incident wave height, and 

 h the height of barrier. Note that this equation cannot be used when wave 

 transmission is by overtopping of a structure. Algorithm uses English or 

 metric system of units. 



REFERENCE 



U.S. ARMY, CORPS OF ENGINEERS, COASTAL ENGINEERING RESEARCH CENTER, Shove 

 Protection Manual, 3d ed . , Vol. II, Ch. 7, Stock No. 008-022-00113-1, 

 U.S. Government Printing Office, Washington, D.C., 1977, p. 7-62. 



Operating Limits and Warnings 



105R-41CV-1 



33 



