Abstract
Transient cavitation flow of the neat PODE (polyoxymethylene dimethyl ether) within a solenoid injector
Highlights
Transient flow characteristics of the neat PODE within the diesel injector are complex, with high velocity magnitude (~700m/s) in a small geometric scale (~1mm)
Detailed cavitating flow within the nozzle such as geometric induced cavitation and string cavitation have been noticed from both simulation and experiments[2]
The transient moving of needle was resolved by a cell-based cell deformation approach, and the phase change was predicted by the variation of the density using the barotropic equation of state (EoS)[6], [7]
Summary
Transient flow characteristics of the neat PODE (polyoxymethylene dimethyl ether) within the diesel injector are complex, with high velocity magnitude (~700m/s) in a small geometric scale (~1mm). A large amount of numerical and experimental study was conducted based on the incompressible URANS method and cavitation visualization techniques[1]. The number of orifices increases with the growth of the injection pressure, which introduces a double-layer geometry to make the spray jets more uniform than the one-layer nozzle[4].
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