A STUDY ON FLOW INDUCED VIBRATION EXCITATION IN SOLID SQUARE STRUCTURES

In order to study the fluid flow characteristics and the possibilities of suppressing the flow induced vibration excitation in elastically mounted solid square structures of aluminum and brass, an experimental analysis is performed at different conditions in an open type wind tunnel. The results observed from the present experimental study is compared and analyzed with the previous work. In the current study the blockage ratio were found to be 1.85% and 2.67% respectively. In turn, the observed oscillatory amplitude ratios of the test cylinders at different conditions is found to be minimum i.e. the maximum amplitude ratio(A/D) for the Al test cylinders is 0.225 and the maximum amplitude ratio (A/D) for the Brass cylinders is 0.25.