Feasibility Study of Unsteady Foam Generators.

A feasibility study was performed to examine the potential of employing an unsteady jet as the primary element in an aircraft fire suppression foam generator. The unsteady jet was controlled by fluidic means and contained no moving parts. Test results indicate an improved spreading rate of the unsteady jet and the possibility of producing a substantial amount of foam without contact between the primary flow and the mixing chamber walls. Further full scale tests are recommended.