A continuum formalism for describing the behavior of primary atomization with phase transition is presented, which includes the effects of heat and mass transfer of the two phase flow, the formation of ligaments and droplets, surface tension force and turbulence. Simulation of liquid jet primary atomization given by Marcus Herrmann (A balanced force refined level–set grid method for two–phase f...

To help understand the complex fuel spray combustion phenomena in modern diesel engine using high injection pressure, a fuel injection test bench and a constant volume combustion chamber were developed and demonstrated in this study for diesel spray diagnostics. Both facilities are significant when linking between spray injection and combustion dynamics and engine performance. This link is impo...

BACKGROUND AND OBJECTIVES Clinical results have demonstrated that dark purple port wine stain (PWS) birthmarks respond favorably to laser induced photothermolysis after the first three to five treatments. Nevertheless, complete blanching is rarely achieved and the lesions stabilize at a red-pink color. In a feasibility study (Part I), we showed that local hypobaric pressure on PWS human skin pr...

The present paper reports on the experimental and theoretical investigations on the lower explosion limits of single dusts, gases as well of two phase mixtures such as gas/dust, vapor/dust, spray/vapor and vapor/gas. The materials used were corn starch, lycopodium, toner and high density polyethylene as dusts, methane and hydrogen as combustible (perfect) gases and acetone and isopropanol as sp...

In the present paper, a complete literatures review of thermal barrier coating applications in diesel engines is performed to select a proper type and to find coating effects. The coating system has effects on the fuel consumption, the power and the combustion efficiency, pollution contents and the fatigue lifetime of engine components. Usually there are several beneficial influences by appl...

In this work, the Engine Combustion Network Spray G injector was mounted in Darmstadt optical-accessible engine to study phenomena typical of multi-hole, early direct-injection events spark-ignition engines characterized by tumble flow charge motion. Dedicated experimental measurements both in-cylinder spray morphology and velocities before after injection process were carried out assess adopte...

Spray characteristics have an important role in improving the quality of combustion compression engines. This study analyzes effect ambient temperature on spray including tip penetration, angle and velocity spray. The research method uses experimental with variations 60 o C, 80 100 C controlled using a thermocouple pressure 0.3 MPa. composition fuel diesel (diesel 100%), B30 (30% biodiesel), B1...