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 Volume-of-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 (θ) 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.
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ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis
July 12–14, 2010
Istanbul, Turkey
Conference Sponsors:
- International
ISBN:
978-0-7918-4917-0
PROCEEDINGS PAPER
Optimization of a High Pressure Swirl Injector by Using Volume-of-Fluid (VOF) Method
Mohammad Rezaeimoghaddam,
Mohammad Rezaeimoghaddam
Ferdowsi University of Mashhad, Mashhad, Iran
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Hossein Moin,
Hossein Moin
Ferdowsi University of Mashhad, Mashhad, Iran
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M. R. Modarres Razavi,
M. R. Modarres Razavi
Ferdowsi University of Mashhad, Mashhad, Iran
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Mohammad Pasandideh-Fard,
Mohammad Pasandideh-Fard
Ferdowsi University of Mashhad, Mashhad, Iran
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Rasool Elahi
Rasool Elahi
Ferdowsi University of Mashhad, Mashhad, Iran
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Mohammad Rezaeimoghaddam
Ferdowsi University of Mashhad, Mashhad, Iran
Hossein Moin
Ferdowsi University of Mashhad, Mashhad, Iran
M. R. Modarres Razavi
Ferdowsi University of Mashhad, Mashhad, Iran
Mohammad Pasandideh-Fard
Ferdowsi University of Mashhad, Mashhad, Iran
Rasool Elahi
Ferdowsi University of Mashhad, Mashhad, Iran
Paper No:
ESDA2010-24614, pp. 435-445; 11 pages
Published Online:
December 28, 2010
Citation
Rezaeimoghaddam, M, Moin, H, Modarres Razavi, MR, Pasandideh-Fard, M, & Elahi, R. "Optimization of a High Pressure Swirl Injector by Using Volume-of-Fluid (VOF) Method." Proceedings of the ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis. ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, Volume 3. Istanbul, Turkey. July 12–14, 2010. pp. 435-445. ASME. https://doi.org/10.1115/ESDA2010-24614
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