Experimetal Investigation of lift Forces on Horizontal Cylinder near Bottom in Oscillating Flow

The lift forces on horizontal cylinder near bottom is experimentally investigatde at Reynolds(Re)in the range lf 2500~10000and Keulegan~CARPENTER NUMBERS(kc) inthe intervalof5~20,and gap ratio (e/D) is from (a0)are analyzde by using the Fourier analyses method.It is found that found that both Cl& a0 are the functions lf the Kc number.