Symbol 



Definition 



Dimension 



Example Unit 



I 



^{envelope) 



^i 



% 



T?(t) 



e 



(Theta) 



^j 



M 



(Mu) 

 V 

 (Nu) 



(Xi) 



(Pi) 



P 



(Rho) 



P{. 



Envelope wave form of 2 or more superimposed 

 wave trains (eq. 2-34) 



Water surface displacement by incident wave 

 (Section 2.52) 



Wave crest elevation above SWL 

 (Section 7.313) 



Water surface displacement by reflected wave 

 (Section 2.52) 



Departure of water surface from its average 

 position as a function of time (eq. 3-11) 



Wave phase angle (Section 2.234) 

 •Angle of wind measured counterclockwise 



from X-axis at shore (Section 3.865a); 



(eq. 3-56) 

 •Angle between wind and enclosed basin fetch 



axis (eq. 3-82) 

 •Angle of structure face relative to horizontal 



(eq. 7-104) 

 •An^e of backslope of retaining wall 



(eq. 7-116) 

 •Angle of structure slope in direction of flow 



(eq. 7-114) 



Angle between x-axis and direction of propaga- 

 tion of j^" wave or wave train (eq. 3-17) 



Coefficient of friction (soU) (Table 7-14) 



Kinematic viscosity (Section 7.311) 



Atmospheric pressure deficit in head of water 

 (eq. 3-50) 



•Horizontal particle displacement from wave 

 passage (eq. 2-17) 



Constant = 3.14159 



Mass density (p = w/g) 



Mass density of air 



Mass density of fresh water (1.94 slugs/ft. ) 



Mass density of sediment 



L^/T 



L 

 L 



ft^/l" 



ft^/l'* 



FT^/L'* 



FT^/L* 



feet 

 feet 



feet 

 feet 



feet 



radians 



degrees 

 degrees 

 degrees 

 degrees 

 degrees 



degrees 



ft.^/sec. 



feet 

 feet 



lbs.-sec?/ftf,(slugs/ft?) 

 lbs.-sec?/ft?,(slugs/ft?) 

 lbs.-sec?/ftf,(slugs/ft.3) 

 lbs.-sec.2/ftf,(slugs/ft.3) 



B-20 



