This paper presents a pre-mixed combustion model for diesel and Jatropha oil blends combustion studies. Jatropha oil blends are considered as a mixture of diesel and Jatropha oil. CFD package, FLUENT 6.3 is used for modeling the complex combustion phenomenon in compression ignition engine. The experiments are carried out on a single cylinder, four strokes, water cooled direct injection compress...

We establish the variational principle of Kolmogorov-PetrovskyPiskunov (KPP) front speeds in temporally random shear flows inside an infinite cylinder, under suitable assumptions of the shear field. A key quantity in the variational principle is the almost sure Lyapunov exponent of a heat operator with random potential. The variational principle then allows us to bound and compute the front spe...

Rotational dynamics is known to polarize D0 branes into higher dimensional fuzzy Dp-branes: the tension forces between D0 branes provide the centripetal acceleration, and a puffed up spinning configuration stabilizes. In this work, we consider a rotating cylindrical formation of finite height, wrapping a compact cycle of the background space along the axis of rotation. We find a myriad of inter...

The information provided by the in-cylinder pressure signal is of great importance for modern engine management systems. The obtained information is implemented to improve the control and diagnostics of the combustion process in order to meet the stringent emission regulations and to improve vehicle reliability and drivability. The work presented in this paper covers the experimental study and ...

Because of the most common method of preparing the fuel-air mixture for gasolinefueled engines is port fuel injection (PFI). For reducing the wall-film entering the cylinder in liquid phase, the phenomena of wall-film entering the cylinder in liquid phase should be at minimum lever or be avoided. So the first thing for learning the wall-film is to detect the way of the wallfilm entering the cyl...

A high-speed wind tunnel has been used to experimentally simulate the flow experienced by a capsule entering a planetary atmosphere. High speed photography showed that a steady test time of approximately 50 μs existed in the facility. Holographic interferometry has been performed to measure the twodimensional density distribution around a cylinder in the flow. A peak density ratio (density norm...

Thirteen new carnivorous plant cultivars are named and described: Dionaea 'Angioma', 'EEC Thresher Shark', Pinguicula 'Urchin', 'Damon's Choice', Sarracenia 'Camisole', 'GraceY', 'Spanish Dancer', 'Yellow Hornet', 'White Cobra', 'Wilkerson White Knight', 'Flamenco', 'Asmoderolle', Utricularia 'Garcia's Treasure'

Combine harvesters are widely used worldwide in harvesting many crops, and they have functions that cover the entire process, such as cutting, threshing, separating, cleaning. The threshing drum is core working device of combine harvester plays an influential role rice efficiency, power requirement, seed loss. In this study, two structures threshers (conical-shaped cylindrical-shaped) were test...

Abstract In the field of Internal Combustion Engines (ICEs), increasingly stricter regulations on pollutant emissions have made necessary to continuously monitor engine operation. Indeed, in order tackle fault-induced variations performance, continuous, real-time data related engine’s thermodynamic cycle is needed: specifically, obtaining detailed information combustion phase paramount. indicat...

Combustion stability, engine efficiency and emissions in a multi-cylinder spark-ignition internal combustion engines can be improved through the advanced control optimization of individual cylinder operation. In this work, experimental numerical analyses were carried out on twin-cylinder turbocharged port fuel injection (PFI) to evaluate influence cylinder-by-cylinder variation performance poll...