الفهرس 
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Abstract
In recent years, the use of pulsed combustion systems has increased because of their excellent thermal efficiency, high combustion efficiency, high combustion intensities, low pollutant levels, high convective heat transfer rates, capability of self breathing. Domestic heating units, in which these combustors are used, are currently marketed. Most of advances in pulsed combustor field tip to the fifties were achieved by use of trial and error experimentation, which, contrary to the theoretical study, is time consuming, costly and does not guarantee an optimum design. So this research has adopted theoretical study to achieve an optimum design of pulsed combustor. It also aims to explain some physical phenomena, which occur within the pulsed combustor. The theoretical study established a new numerical technique including influential parameters as friction, area change, entropy interfaces and heat transfer effects. Therefore it is constructed with sufficient generality to include all significant processes which occur in the pulsed coinbustor. It is also incorporated with adequate boundary conditions. The complexity of the combustion process with uncertainties associated with mixing, reaction kinetics and non-equilibrium effects would have detailed theoretical analysis of the combustor practically impossible, at least, until an adequate combustion model has been developed. Therefore, the numerical procedure incorporated a simple heat release scheme to model the combustion process. it was found that the theoretical predictions of the pressure time histories in the combustion space agree fairly well with experimental data gathered from previous works.