(College of Aeronautics, 1960-01) Addington, J. W.
The validity of the available theory in determining the natural
frequency of the fundamental fuel sloshing mode in a rectangular tank was
experimentally investigated. The results were found to agree within 5%
over the whole range, end were quite accurate in the extreme "shallow and
deep water" regions.
A. qualitative investigation into baffle types and positioning
indicates that baffles should be positioned in a region of highest velocity
such that the surface waves are trapped and the energy dissipated at the
shallowest depth possible, This suggests that, for a tank with varying
liquid depth, a multi-perforated baffle should be employed. A total
orifice area of one quarter the baffle area is suggested.