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...

The mixture formation prior to the ignition process plays as a key element in the diesel combustion. Parametric studies of mixture formation and ignition process in various injection parameter has received considerable attention in potential for reducing emissions. Purpose of this study is to clarify the effects of injection pressure on mixture formation and ignition especially during ignition ...

Technological developments in diesel engines require improvements to the fuel injection system meet criteria for economical, high-power and efficient combustion environmental regulatory standards. One method that has a lot of interest is changing characteristics fuel, with aim producing optimal combustion. Spray have big role determining quality engines. A good spray can improve atomization hom...

Microneedles represent promising tools for delivery of drugs to the skin. However, before these microneedles can be used in clinical practice, it is essential to understand the process of skin penetration by these microneedles. The present study was designed to monitor both penetration depth and force of single solid microneedles with various tip diameters ranging from 5 to 37µm to provide insi...

The objective of this study was to investigate the effect a premixed ethanol ratio based on same total heating value in cylinder equivalence distributions and injected fuel droplet behavior an RCCI engine. spray simulation conducted two parts. First, we carried out validation simulations determine spray-influenced factor test injector. Next, engine were performed with obtained from atomization ...

The aircraft ground deicing (AGD) process is a mandatory step before taking off in cold climate. development of CFD (computational fluid dynamics) tools to simulate AGD could help the industry reduce its costs and limit pollution. Previous works have modelled some parts process. Building on these previous works, this paper presents three-dimensional (3D) algorithm full scale. comprises multi-re...

The main purpose of the present work is multi-objective shape optimization of a projectile tip for impacting and normal penetrating. Velocity drop, weight and inner volume of projectile have been considered as three conflicting objective functions.  For this purpose, at the first step, finite element modeling was done using ABAQUS/Explicit and projectile penetration was examined in different ge...