

APPENDIX 









SYMBOLS AND DEFINITIONS 







Symbol 



Definition 



Dimension 



Unit 



A 



Area 



l2 



ft2 



Ai,A2....A„ 



A set of n variables in the it theorem 



- 



- 



a 



Acceleration 



L/t2 



ft/sec2 





•Moment arm of force P 



L 



ft 





(Fig. 6-38) 







a,b,c 



Parapet moment arms (Fig. 6-40) 



L 



ft 



a,b,c,d 



Linear dimensions necessary to define the 

 geometrical boundary conditions 



L 



ft 



^1 



Wave amplitude at input line 



L 



ft 



B 



Flume width 



L 



ft 



b 



Width 



L 



ft 





•Bottom width of wave generator 



L 



ft 





plunger (Fig. 6-9) 









•Moment arm of force W (Fig. 6-40) 



L 



ft 



C 



Coriolis force 



F 



lb 





•Constant (Eq 2-25) 



- 



- 



c' 



Constant (Eq 2-26) 



- 



- 



Acoustical velocity of shock front in 

 breakwater material 



chamber nozzle (Eq 6-37; Fig. 6-10) 



DP Linear scale distortion factor 



D Effective stone diameter of prototype core 



material (Fig. 4-5) 



L/T 



ft/sec 



Cd 



Drag coefficient 



- 



- 



Cd 



Discharge coefficient for an orifice or inlet 



- 



- 



Ch 



Chezy coefficient 



- 



- 



Cw 



Acoustical velocity of shock front in water 



L/T 



ft/sec 



c 



Specific heat of water 



- 



Btu/lb/°F 





•Moment arm of uplift force U 

 (Fig. 6-38) 



L 



ft 



Cat 



Velocity of sound in outside air 



L/T 



ft/sec 



c.p. 



Center of pressure distance (Fig. 6-16) 



L 



ft 



D 



Effective diameter of stone 



L 



ft 





•Sediment particle diameter 

 (Section V only) 



L 



ft; mm 





•Damage to rubble-mound breakwater 

 cover layer (Section VI only) 



• npDtli of narrowfest Dart of Dneumatic 



L 



percent 

 ft 



52 



