Title: Numerical Simulation of Cavitating Flow in Diesel Nozzle
Abstract: Cavitating flow in diesel nozzle affects diesel fuel spray and combustion characteristic.The flow field change model in SAC type nozzle hole was performed by computational fluid dynamics software when needle valve was moving.The results show that the cavitation appears initially at the nozzle hole inlet edge,and it is developed when the diesel fuel increases speed.Ultimately,the cavitation bubble through the nozzle hole forms supercavitation,and the flow field is divided into two-phase flow in nozzle hole.Under unsteady(transient) conditions,needle valve moving results in pressure fluctuation near the inlet of nozzle hole,which influences cavitation and supercavitation.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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