Numerical and Experimental Study of Oscillatory Processes in Small-Scale Combustion Heaters of Air
V. Yu. Aleksandrov1,2, K. Yu. Aref'ev1,2,3, M. A. Il'chenko1
1Baranov Central Institute of Aviation Motors, Moscow, 111116 Russia
2Moscow Institute of Physics and Technology, Moscow, 117303 Russia
3Bauman Moscow State Technical University, Moscow, 105005 Russia
Keywords: огневой подогреватель, высокоэнтальпийный поток, эксперимент, пульсации давления, акустическая проводимость, спектральная характеристика, combustion heater, high-enthalpy flow, experiment, pressure oscillations, acoustic conductivity, spectral characteristic
Abstract
Results of a comprehensive numerical and experimental study of oscillatory processes in combustors of small-scale combustion heaters of air are reported. Methods for prediction and experimental determination of regular features of changes in spectral characteristics of pressure oscillations in the combustor in the nominal operation mode are presented. The data obtained in the study can be used for the development of various combustion heaters, including those for testing combustors of air-breathing engines for promising flying vehicles.
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