Symbol Definition Dimension Unit 



Xj Dimensionless length in x direction 



along the input line 



X Longitudinal length L ft 



X Distance of wave travel for wave to be L ft 



reduced by 50 percent by internal friction 

 (Eq 4-27; Fig. 4-2) 



x,y Horizontal and vertical distances, L ft 



respectively, of the pivot from the structure 

 toe (Fig. 6-16) 



X J ,y J Coordinates of a point on a given input hne L ft 



x-.y. Coordinates of a point on a coastline L ft 



x,y,z Longitudinal, lateral, and vertical L ft 



coordinates, respectively 



•Exponents in ir terms - - 



^o'^o'^o Coordinates of a point on a solid boundary L ft 



Y Dimensionless length in y direction, - - 



defined as y/L^ 



Yj Dimensionless length in y direction along - - 



input hne 



y Lateral length L ft 



Z Dimensionless depth, defined as z/d^ - - 



z Vertical length 



•Depth below water surface (Eq 6-20) 



a Exponent, defined by Eq 4-29 (Eq 4-28 



tiirough 4-31; Figs. 4-3, 4-4) 



•Angle of seaside slope of breakwater 

 measured from the horizontal 



•Angle of wave-generator plunger face, 

 measured from the vertical (Fig. 6-9) 



•Angular acceleration (Fig. 6-40) 

 j3 Angle of wave attack 



7 Specific weight 



•Ratio of specific heats (Eq 6-32, 6-33) 



y' Relative specific weight of sediment in fluid, 



defined as (7^ - 7f)/7f (Section V only) 



A Shape factor of armor units (Eq 6-1 



through 6-5) 



•Deflection of cable (Eq 6-12) L ft 



6 Fall of water surface in pneumatic L ft 



chamber during wave generation 



7j Surface displacement from the undisturbed L ft 



water level 



528 



L 



ft 



L 



ft 



L-1 



ft-1 



- 



degrees 



- 



degrees 



T-2 



rad/sec 



- 



degrees 



'/l3 



Ib/ft^ 



