Study of the Regimes of Diffusive Combustion of a Hydrogen Microjet

The paper presents the results of experimental studies scenarios diffusion combustion a microjet hydrogen flowing out cylindrical micronozzle with diameter 200 μm. is ignited near nozzle exit and at distance. data are compared previously obtained, expressed in dimensionless parameters (in terms Reynolds numbers). It established that stabilization flame during outflow circular micro jet associated presence heating by spherical region covering section. hysteresis process microjets shown depending on ignition location (near or far from exit) change flow rate (growth decrease).