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- W4387401037 abstract "In order to shorten the DDT distance of the pulse detonation combustion chamber, an experimental study of the effect of pneumatic atomization injector modification on atomization particle size amd gas-liquid two-phase U-bend pulse detonation combustion chamber (U-PDC) was carried out. Gasoline and air were used as fuel and oxidizer, and the atomization particle size was tested and the detonation characteristics of the U-PDC were obtained using the pneumatic atomization injector before and after the modification. The results show that the atomization size range of the injector before the modification is 111.6?m ~ 152.9?m, after the modification of the injector atomization size range of 76.4 ~ 107.2?m, atomization size than before the modification is significantly reduced; U-PDC using the injector before and after the modification can achieve stable operation in the range of 10 ~ 30Hz, and the DDT distance shortened with the increase in frequency. At an operating frequency of 30Hz, the DDT distance of U-PDC with the injector before modification is about 676mm, and the DDT distance of U-PDC with injector after modification is shortened by 8.9% to about 616mm. In addition, under the same operating conditions, due to the better atomization effect of the injector after modification, The fuel flow rate of U-PDC with the injector after modification is 5%~10% smaller than that with the injector before modification when the average detonation pressure reaches its maximum value during the adjustment of fuel flow." @default.
- W4387401037 created "2023-10-07" @default.
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- W4387401037 date "2023-01-01" @default.
- W4387401037 modified "2023-10-07" @default.
- W4387401037 title "Investigation on the effect of injector modification on injector atomization and U-bend pulse detonation combustion characteristics" @default.
- W4387401037 doi "https://doi.org/10.2298/tsci230513203w" @default.
- W4387401037 hasPublicationYear "2023" @default.
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