Experimental Investigation of the Helmholtz Resonator Burner; Three Months at China Lake

摘要

This report describes a three-month research period, spent by the author at the Naval Weapons Center, China Lake, California. The experiments that were carried out with the Helmholtz Resonator Burners are dealt with. The period was very successful: Apart from very valuable scientific discussions, it could be shown that Helmholtz Resonator Burners can be used to determine the response function of solid rocket propellants, while very unexpectedly, evidence was obtained of high sensitivity for oscillatory combustion at low frequencies. It is hoped that this can be linked to a theory that is to be proposed by the author to explain L star-instability among other things. Finally, some brief information about visits to other institutions and industry and papers presented is given.