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atomization
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Computational Investigation of Primary Atomization of an Unsteady and 3D Laminar Liquid Jet, Using LBM and GPU
, M.Sc. Thesis Sharif University of Technology ; Taeibi, Mohammad (Supervisor) ; Kebriaee, Azadeh (Co-Supervisor) ; Salimi, Mohammad Reza (Co-Supervisor)
Abstract
Based on the history of computational fluid dynamics, choosing a proper method for three-dimensional investigation of two-phase flows is always challenging. In this research, the flow of atomization of a liquid jet was investigated. Also, Using GPU technique made our computations about 40 times faster. The numerical results are in good agreement with available numerical and experimental data. Based on our results, jet flow can achieve different regimes at different Weber and Reynold. Jet flow was found in dripping and Rayleigh instability regimes when Weber number was set to 1.79 and 3.10, respectively. Also, the transition between dripping and jetting was estimated at We between 2 to 3. In...
Experimental Study of Spray Pattern of Two Impinging Jets of Non-Newtonian Gel Fluid Containing Aluminum Nanoparticles
, M.Sc. Thesis Sharif University of Technology ; Kebriaee, Azadeh (Supervisor)
Abstract
In most of the studies conducted on the physics of the outflow from impinging jet injectors, Newtonian fluids have been used for their research and experiments. These studies have investigated the effect of factors such as geometrical parameters of the injector and physical properties of the fluid on different regimes resulting from the impact of the jet stream; Unfortunately, very few studies have been conducted on how to form spray and atomization in gel non-Newtonian fluids containing nanoparticles to investigate the above factors when using impinging jet injectors. Furthermore, although the addition of nanoparticles has advantages for better combustion, there are still problems in...