THE EFFECT OF NON-EQUILIBRIUM FREE-RADICAL CONCENTRATION ON IGNITION DELAY IN THE HYDROGEN-AIR SYSTEM
- 1 November 1964
- report
- Published by Defense Technical Information Center (DTIC)
Abstract
This report presents a theoretical discussion of the effect of nonequilibrium quantities of free radicals on the ignition delay in the hydrogen-air system. A correlation was found between the ignition delay computed from complete reaction kinetics and the initial rate of the reaction O2 + H = OH + O. A rate equation is derived in which a modified expression for the total free radical content is substituted for the H concentration. The implications of non-equilibrium amounts of free radicals on the testing and operation of high velocity combustion systems are discussed.Keywords
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