10th Biennial Conference on Engineering Systems Design and Analysis ESDA2010 , 2010-07-12

Title : ( OPTIMIZATION OF A HIGH PRESSURE SWIRL INJECTOR BY USING VOLUME-OF-FLUID (VOF) METHOD )

Authors: Mohammad Rezaeimoghaddam , Hossein Moin , Seyyed Mohammad Reza Modarres Razavi , Mohammad Passandideh Fard , Rasool Elahi ,

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In this paper, the effects of various geometric parameters of a high pressure swirl Gasoline Direct Injector (GDI) on the injection flow quality are investigated. The two-dimensional axisymmetric Navier-Stokes equations coupled with the Volumeof- Fluid (VOF) method were employed for simulation of the formation mechanism of the liquid film inside the swirl chamber and the orifice hole of the pressure swirl atomizer. To validate the model, results for base injector were compared in the steady state operation with those of available experiments in the literature. Good agreements were obtained for discharge coefficient Cd  and cone angle   with experimental data. The effects of five characteristic geometric parameters of swirl injectors such as orifice ratio (orifice length to orifice diameter), angle of swirl chamber, orifice diameter, needle lift and needle head angle (assumed to be cone) were investigated. The results show that increasing the swirl chamber angle leads to an increase in mass flow rate and a decrease of the cone angle of liquid sheet. Through extensive simulations, geometric parameters of an optimum injector were obtained.

Keywords

, swirl atomizers, modeling, volume of
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@inproceedings{paperid:1018993,
author = {Rezaeimoghaddam, Mohammad and Moin, Hossein and Modarres Razavi, Seyyed Mohammad Reza and Passandideh Fard, Mohammad and Elahi, Rasool},
title = {OPTIMIZATION OF A HIGH PRESSURE SWIRL INJECTOR BY USING VOLUME-OF-FLUID (VOF) METHOD},
booktitle = {10th Biennial Conference on Engineering Systems Design and Analysis ESDA2010},
year = {2010},
keywords = {swirl atomizers- modeling- volume of fluid},
}

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%0 Conference Proceedings
%T OPTIMIZATION OF A HIGH PRESSURE SWIRL INJECTOR BY USING VOLUME-OF-FLUID (VOF) METHOD
%A Rezaeimoghaddam, Mohammad
%A Moin, Hossein
%A Modarres Razavi, Seyyed Mohammad Reza
%A Passandideh Fard, Mohammad
%A Elahi, Rasool
%J 10th Biennial Conference on Engineering Systems Design and Analysis ESDA2010
%D 2010

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