GRAVITY EFFECTS ON THE COUPLED FREQUENCIES OF A 2D FLUID-STRUCTURE PROBLEM WITH A FREE-SURFACE

This paper discusses an experimental study of the coupled frequencies of a flexible structure partially immersed in a fluid in a finite cont ainer, in two dimensions, with non-negligible gravity effects. The res ults are compared with those obtained using a theoretical linear model including surface tension and meniscus length. The good agreement obt ained validates this theoretical model. Curves are then presented for the coupled frequencies vs the fluid level in this container for vario us values of the gravity. (C) 1998 Academic Press.