Wave-Induced Eddies and "Lift" Forces on Circular Cylinders 



I0 2 I0 3 I0 4 I0 5 I0 6 I0 7 



FIG. I DRAG COEFFICIENT AND RECIPROCAL 

 OF STROUHAL NUMBER VERSUS 

 REYNOLDS NUMBER 

 (From Roshko, 1961 ) 



1 I — I — I — I — I — I — I — T 



Finol overoge tocotKX> 

 I 



FIG. 2 CORRELATION OF DRAG 



AND INERTIA COEFFICIENTS 

 (From Sarpkaya and Garrison, 1963) 



c d 



c m = 1 +c 



(b) CIRCULAR CYLINDERS 



Crr^Co 



(a) PLATES 



FIG. 3 INTER -RELATIONSHIP BETWEEN COEFFICIENTS OF COEFFICIENTS 

 OF DRAG AND OF VIRTUAL MASS FOR (a) FLAT PLATES AND (b) 

 CIRCULAR CYLINDERS (From Mc Nown and Keulegan , 1959 ) 



763 



