TM No. 377 



f Frequency function 



fj^ Kth frequency in the spectrum 



fpj Nyquist frequency 



fy Repetition rate or output frequency of voltage pulse 



f (°° ) Impeller frequency at equilibrium 



g Gravitational acceleration 



H Wave he ight 



H Average wave height 



I Moment of inertia 



I Ordinate intercept (chapter 3) 



i V3T 



i (subscript) Intermediate waves 



K or k Wave number (2n/L) 



K Index number of a particular frequency (chapter 3) 



K^ Constant of proportionality relating resistance to drag 

 force ( in air ) 



Kf Proportionality constant 



K|_ Function of fluid viscosity and density 



Kp Proportionality constant 



Ky Constant of proportionality relating resistance to drag force 

 ( in sea water ) 



iKw Velocity vector in Z direction 



L Wave length 



L Lags ( chapter 3 ) 



|L Time variable displacement vector 



Lg Linear distance (equal to shieve circumference ) 



xv i 



