Shock Tube Technique for Study of Autoignition of Liquid Fuel Sprays

Nitrogen Oxide Formation in Autoignition of Liquid Fuel Sprays

“…The shock tube, fuel injection system, and most of the experimental apparatus have been described previously (8,9).…”

“…A shock tube technique (8) was used to provide a source of stationary, high pressure-high temperature air. Several liquid fuels were sprayed into the zone of compressed air after reflection of the incident shock wave from the tube end.…”

AEROFROSH: a shock condition calculator for multi-component fuel aerosol-laden flows

“…Perhaps the first example of an aerosol shock tube was a device engineered by Mullaney in 1958 for use with n-hexadecane droplets [37,38]. Mullaney's shock tube introduced fuel using a modified diesel injector system.…”

“…In contrast, shocks in aerosols require a fuel measurement after droplet evaporation is complete, because techniques of quantifying the amount of fuel aerosol in the Region 1 mixture (e.g., using Mie scattering [60]) are difficult. (Note that in shock tubes that employ aerosol injection systems [37,38], simply measuring the volume of liquid that is injected is possible; however, nonuniformity in the aerosol concentration throughout the shock tube and losses of aerosol to the tube walls make this technique less reliable.) This is best accomplished by way of a spectroscopic laser diagnostic using the Beer-Lambert relation.…”

Shock Tube Studies of Ignition of Hydraulic Fluids

“…A study of the combustion process when re-hexadecane is injected as a fine spray into shock-heated air was made by Mullaney (5). By high-speed photography, he was able to observe injection of the spray, evaporation of the droplets, and spontaneous ignition.…”