NOMENCLATURE 



A cross-sectional area of object, ft^ 



a water particle acceleration, ft/sec 



C drag coefficient 



Cj-jiT drag coefficient at wave side of model 



Cqj. drag coefficient at real side of model 



Cj inertia coefficient 



D diameter of pile, ft 



F total peak wave drag force on object, lb 



F£ total peak positive wave drag, lb 



Fj. total peak negative wave drag, lb 



f wave frequency, Hz 



fj^ model natural pitching frequency, Hz 



H wave height, in 



L submerged model length, ft 



L submerged model length at wave crest, ft 



Lj- submerged model length at wave trough, ft 



1 distance along the model, ft 



P local unit wave force, lb/ft 



U flow velocity in general, ft/sec 



V peak water particle velocity, ft/sec 



V mean peak velocity, ft/sec 



Vd model drifting velocity, ft/sec 



V^ maximum peak water particle velocity in waves, ft/sec 



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