... of the recess length l R , it is shown that the spray cone angle and the drop size decrease as l R increases. As one of the experimental results, the discharge coefficient of the pressure-swirl atomizer in the GCSC injector will be firstly presented and then the effects of momentum flux ratio and recess...

... the governing equations of a viscous liquid jet. The results predict the evolution and breakup of the liquid jet, the growth rate of disturbance, the breakup time and location, and the main and satellite drop sizes. It is found that the predicted growth rate of disturbance, the breakup time, and the main...

...T. F. Oliveira; F.R. Cunha This theoretical work shows how the knowledge of the emulsion microscale, including drop stretching and orientation leads to a continuum description of emulsion flows. A first order small deformation theory is explored for describing the rheology of an emulsion of high...

... O’Rourke , P. J. and Amsden , A. A. , 1987 , “The TAB Method for Numerical Calculation of Spray Droplet Breakup,” SAE Paper No. 872089. 11 Tanner , F. X. , 2004 , “ Development and Validation of a Cascade Atomization and Drop Breakup Model for High-Velocity Dense Sprays...

... of the results with respect to the fineness of mesh is developed with special emphasis on the influence of the nondimensional sub-layer scaled distance. The coefficient of pressure drop and the droplet collection efficiency are numerically calculated. It may be concluded that using the GCI method leads...

... the secondary-drop-breakup region. To simulate these multiscale free surfaces, we developed a method that combines two types of simulation. The liquid-film breakup near the injector outlet was simulated by using a particle method, and the secondary-drop breakup after the liquid-film breakup was simulated...

... Eggers , J. and Dupont , T. F. , 1994 , “ Drop Formation in a One Dimensional Approximation of the Navier Stokes Equation ,” J. Fluid Mech. , 262 , pp. 205 – 221 . 10.1017/S0022112094000480 21 Setiawan , E. R. and Heister , S. D. , 1997 , “ Nonlinear Modeling...

...Alexander G. Bick; William D. Ristenpart; Ernst A. van Nierop; Howard A. Stone We recently discovered that bubble formation can be substantially prevented when an aqueous solution is sprayed into a bath of the same solution provided that any two consecutive drops impacting the same surface location...

...S. Mortazavi; Y. Afshar; H. Abbaspour The motion of deformable drops suspended in a linear shear flow at nonzero Reynolds numbers is studied by numerical simulations in two dimensions. It is found that a deformable drop migrates toward the center of the channel in agreement with experimental...

..., quite naturally, the smaller expansion angles result in larger pressure drops through the nozzle because of the added resistance to the flow. The difference, however, is too small (less than 1%) to have any practical consequence. Moreover, this difference rapidly decreases as the expansion angle...

... can better capture the force and counterforce between the coalescence and breakup processes. Thus, mixed kernel B is more appropriate to describe the drop size behavior in gas-liquid annular flow. Comparison between predicted pressure gradient and experimental data (liquid superficial...

...A. Dechelette; P. E. Sojka; C. R. Wassgren The objective of this study is to develop a computational model that accurately describes the dynamic behavior of a non-Newtonian power-law film formed after a drop impinges on a flat surface. The non-Newtonian drop deposition and spreading process...

...Ariel R. Muliadi; Paul E. Sojka; Yudaya R. Sivathanu; Jongmook Lim The goal of this study was to determine when patternation information derived from Phase Doppler Analyzer (Dantec Dynamics, Skovlunde, Denmark, dual-PDA) measurements of volume flux, drop velocity, and mean size agreed...

... dissipation in spontaneous spreading and the other one is for viscous dissipation of the initial kinetic energy of the droplet. The new model satisfies the fundamental physics of drop-surface interaction and can be used for droplets impacting on solid surfaces with or without initial kinetic energy...

.... A. , 1976 , “ Stability of Hagen-Poiseuille Flow With Superimposed Rigid Rotation ,” J. Fluid Mech. 0022-1120 , 73 ( 1 ), pp. 153 – 164 . 10.1017/S0022112076001304 26 05 2009 05 01 2010 17 03 2010 17 03 2010 centrifuges drops flow separation rotational flow rotors...

..., inlet and outlet unsteady pressures, and pump rotation velocity enable to characterize the pump behavior during rapid starting periods. Three different types of fast startup behaviors have been identified. According to the final operating point, the startup is characterized either by a single drop...

.... In such a process, curved liquid jets produced by rotating a perforated cylindrical drum are utilized to control drop sizes and breakup lengths. In general, smaller droplets are observed as the rotation rate is increased. The addition of surfactants along the free surface of the liquid jet as it emerges from...

...R. Shukla; K. A. Sallam An experimental investigation of the role of liquid transparency in controlling laser-induced motion of liquid drops is carried out. The study was motivated by application to manipulation of liquid drops over a solid substrate. Droplets with diameters of 1–4 mm were...

... theory describes the main characteristics of the flow very well. 28 07 2006 31 01 2008 06 03 2009 drops flow simulation mass transfer nozzles numerical analysis pipe flow two-phase flow vortices Laval nozzle vortex flow natural gas Condi-Cyclone The behavior...

...Ritu Gupta; R. K. Wanchoo The shape of a single Newtonian liquid drop moving freely under gravity in quiescent non-Newtonian liquid (visco-inelastic and visco-elastic) has been studied. Strong effect of fluid elasticity on the shape of Newtonian liquid drop has been observed. Based on experimental...