PARTIAL RADIATION EFFICIENCY OF LINE-DRIVEN PANELS

The power and partial power radiated by a vibrating surface facing a fluid are defined in terms of radiation and partial radiation efficiencies, respectively. The power and partial power radiated by the surface are also estimated in terms of a designated velocity distribution on this surface. By equating the respective expressions for the power and partial power radiated, the radiation and partial radiation efficiencies are estimated in terms of the velocity distribution and the speed of sound in the fluid. By using these estimates, the partial radiation efficiencies of line-driven unribbed and regularly ribbed panels are cited in numerical examples. © 1991.