• Ashsih B. Malkan
• Mehul P. Bambhania

As energy is essential for human development, society faces a dual challenge: the rapid growth in energy demand and carbon emissions including the risks of climate change. One important method of reducing emissions in Diesel engines is to improve fuel injector spray breakup, producing smaller and more disperse droplets. The flow inside the fuel injector nozzle is known to have a significant effect on the spray. Recent investigations have suggested that the cavitation occurring within the fuel injector nozzle significantly affects spray breakup. However the hydrodynamic cavitation behavior of diesel flow inside the fuel injector nozzle is still need to explore. In this paper numerical simulations were performed with and extensive validation has been established with available experimental data. Geometry of two dimensional real size nozzles has been used to assess the effect of mixture and volume of fluid (VOF) multiphase model. Effect of back pressure (15 bar to 85 bar) with constant injection pressure (100 bar) has been performed with diesel fuel. The results obtained with mixture and VOF model is compared with experimental data. It is found that both model are equally capable to capture cavitation phenomena, however VOF will give closer results after cavitation inception

Fuel injector nozzle, Cavitation, Mixture model, VOF model, CFD

"COMPARISON OF MIXTURE AND VOLUME OF FLUID MULTIPHASE MODEL FOR CAVITATION INSIDE THE FUEL INJECTOR NOZZLE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 9, page no.584-590, September-2020, Available :http://www.jetir.org/papers/JETIR2009289.pdf

"COMPARISON OF MIXTURE AND VOLUME OF FLUID MULTIPHASE MODEL FOR CAVITATION INSIDE THE FUEL INJECTOR NOZZLE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 9, page no. pp584-590, September-2020, Available at : http://www.jetir.org/papers/JETIR2009289.pdf