Computational Modeling of Flow inside High Pressure Swirl Injectors By Considering Air-Cavity
محل انتشار: هجدهمین کنفرانس سالانه مهندسی مکانیک
سال انتشار: 1389
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 2,013
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شناسه ملی سند علمی:
ISME18_401
تاریخ نمایه سازی: 1 تیر 1389
چکیده مقاله:
In this paper the computational fluid dynamic (CFD) method was used to simulate two-phase flow within high pressure swirl injectors. The two-dimensional axisymmetric swirl Navier-Stokes equations coupled with the Volume-of-Fluid (VOF) method was employed for accounting the formation mechanism of the liquid film inside the swirl chamber and the orifice hole of the high pressure swirl injector. The VOF method was usedto identify the liquid-gas interface developing inside the injector. Numerical simulations were carried out under 7MPa injection pressure with constant needle injector lift. The time-series analyses were carried out for flow inside injector in the transient state and steady state operation. Numerical results were compared for the steady state operation with experimental and empirical data that available in the literature. Good agreements were obtained for discharge coefficient ( ) d C and cone angle (θ ) with experimental data.
کلیدواژه ها:
نویسندگان
M. Rezaeimoghaddam
M.Sc. Student, Department of mechanical Engineering, Ferdowsi University of Mashahad
M. R. Modarres Razavi
Professor, Department of mechanical Engineering, Ferdowsi University of Mashahad;
M. B. Ayani
Assistant Professor, Department of mechanical Engineering, Ferdowsi University of Mashahad
R. Elahi
M.Sc. Student, Department of mechanical Engineering, Ferdowsi University of Mashahad