Abstract
In the aerospace field, energetic nanoparticles (NPs) are added to fuels to increase fuel density and energy. However, the non-Newtonian feature of NPs containing suspension restricts their application. High pressure gas-assistance (HPGA) is an effective technique for improving the oscillations of a liquid jet, especially of heavy oil. This study developed a set of spray systems to investigate the spray characteristics of NP suspension in an HPGA Y-jet injector. To change the resonance of the injectors, three different Y-jet injectors with unique structural parameters were constructed. The rheological behavior of fuel was tested, and its spray characteristics were studied. Details of the spray field were recorded using a high-speed camera, and Sauter mean diameter (SMD) was measured using a particle size analyzer.
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