... 04 2011 20 12 2011 20 12 2011 compressible flow drops transonic flow two-phase flow transonic compressor stage inlet fogging numerical simulation stall boundary choking boundary The use of water injection technique into the compressor has shown to increase...

... gratefully acknowledge support for this work from Denso Corporation. 04 06 2010 18 09 2010 19 05 2011 19 05 2011 diesel engines dissociation drops nozzles orifices (mechanical) petroleum sprays group-hole nozzle Sauter mean diameter (SMD) droplet mean velocity...

.... The primary breakup visualization, breakup length measurement, and droplet size measurement were performed for different rotational speeds. Several pictures of liquid breakup are included, and various mean and representative diameters are presented. In addition, drop size histograms and cumulative volume...

... of droplet sizes and velocities are presented in Fig. 6 to predict roughly the droplet-wall interactions for a compressor. Schematic of droplet-wall interaction blades compressors drops rotors sprays two-phase flow wet compression two-phase flow droplet breakup water film...

... increase the evaporative cooling effect through the enhanced heat and mass transfer rates. 10 05 2010 13 05 2010 05 04 2011 05 04 2011 compressors cooling drops evaporation gas turbines heat transfer mass transfer The injection of water droplets into gas turbines...

... uniform (in the range of 300–304 K). Temperature significantly drops to 288 K at the leading edge of the suction side of the rotor due to strong acceleration and pressure drop downstream of the stagnation region (see Fig. 5a ). Temperature increases from 288 K to 308 K along the suction side and from 304...

.... 24 02 2009 24 08 2009 20 05 2010 20 05 2010 automobile industry automotive components cavitation computational fluid dynamics drops flow instability fuel systems hydrodynamics internal combustion engines nozzles petroleum shear turbulence two-phase flow...

... } q s [ r , t ] = − λ ∂ T s ∂ r ,     q l [ r , t ] = − λ ∂ T l ∂ r which has to result in a heat flux equal to the heat flux from the melt drop surface to the surrounding water. Figures 3 4 show the HTMOD simulation results...

... dynamics diameter measurement drops fuel systems jets Mach number orifices (mechanical) shear flow sprays velocity measurement vortices Since cross flow fuel injection is widely used in gas turbine engines combustors, it is important to understand the mechanisms that control the spray...

... air and water. Pressure drops in a barrel and a diffuser and diameters and velocities of droplets at the exit of the barrel are measured using differential pressure transducers and particle Doppler anemometry, respectively. The separator performance does not depend on the shape of the pick-off ring...

... turbines still suffer from erosion. 25 06 2008 26 06 2008 12 02 2009 blades drops rotors stators turbines slot hot blowing secondary water droplet hollow stator blade Some water on the rotor blade surfaces is drawn out to the stage periphery under the action...

... performed before and around the onset of flooding. The measured global parameters such as water levels and pressure drop will be analyzed in order to characterize the flow. Furthermore, the comparison with detailed visual observations will be used to explain this behavior. Furthermore, the effect...

... and then suddenly rises to a nearly constant, high value during the spray event. As the injector closes, the projected density drops, though not as suddenly as it increased at the start of injection. There is also a small bump in the data near 1820 μ s after commanded SOI. This suggests that perhaps...

... collision and coalescence processes. For reducing grid dependency due to the relative velocity effects, a gas-jet theory is proposed and applied to model diesel sprays. For the time-step dependency, it is identified that the collision submodel results in drop size variation in the standard spray model...

... associated with IFB and similar technologies. 07 05 2007 02 01 2008 02 04 2008 blades compressors drops evaporation flow simulation pipe flow two-phase flow The evaporation of water to cool air as a means of reducing compressor work is a well established...

... location influences compressor stage loading redistribution differently. The plausible explanations to the observed trends of various performance parameters are presented in this paper. 28 06 2006 17 10 2006 17 12 2007 aerodynamics compressors drops evaporation FORTRAN gas...

.... , 2000 , “ Numerical Modelling of Two-Phase Flow in a Simplified Bearing Chamber ,” Ph.D. thesis, University of Nottingham. Cossali , G. E. , Coghe , A. , and Marengo , M. , 1997 , “ The Impact of a Single Drop on a Wetted Solid Surface ,” Exp. Fluids 0723-4864 10.1007...

... on parent drops was modeled and integrated into the TAB governing equation. Several assessment studies are presented, and the results indicate that the existing KH and TAB models tend to underpredict the product drop size and spray angle, whereas the current model provides superior results when compared...

... presented at the International Gas Turbine and Aeroengine Congress and Exhibition, Atlanta, GA, June 16–19, 2003, Paper No. 2003-GT-38801. 01 October 2002 01 March 2003 16 June 2003 18 09 2006 gas turbines nozzles drops evaporation Gas turbine output...

..., and especially no significant change seems to exist between ST power boost and the type of applied fogging strategy. This observation could be explained considering that drop in ST performance is principally caused by ambient temperature and relative humidity effects on the condenser cooling system...