The performance of a pressure atomizer with a flow obstruction upstream of the nozzle

P. Andrew Corber
The internal flow and the spray formed by a pressure atomizer with an orifice diameter of 1mm and a length to diameter ratio of 10 were studied at injection pressures between 70 and 5000 kPa. Obstructions to flow were also introduced inside the injector to examine their effect on the injector's performance. Visualization of the flow inside the injector indicated that the obstructions caused the flow to cavitate. However, even without any obstruction, cavitation occurred...
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