Abstract The effects of varying turbulence intensity and length scale on premixed turbulent flame propagation are investigated using Direct Numerical Simulation (DNS). DNS dataset contains the results a set simulations based separate systematic changes in either or integral while keeping all other parameters constant. All flames considered thin reaction zones regime. Several aspects behaviour a...

This study concerns high temperature flame synthesis of ceramic deposits utilizing a mono-disperse stream of droplets composed of an aqueous precursor. The droplets were injected into an oxy-acetylene flame. Mono-disperse droplets were generated with an electrostatic spray technique. High-speed droplet images suggest evidence of shedding of small particulates from the droplet surface as they en...

Changes in flow strain and mixture composition on the order of a flame time scale are characteristic of many practical combustion processes. Accurately predicting the unsteady reponse of burning to these changes requires detailed modeling of species transport and chemical kinetics. This thesis formulates a detailed one-dimensional computational model for arbitrary unsteady conditions of strain ...

INTRODUCTION Contractures, ectropion and scarring, the most common sequelae of skin grafts after eyelid burn injuries, can result in corneal exposure, corneal ulceration and even blindness. Split-thickness or full-thickness skin grafts are commonly used for the treatment of acute eyelid burns. Plasma exudation and infection are common early complications of eyelid burns, which decrease the succ...

0010-938X/$ see front matter 2011 Elsevier Ltd. A doi:10.1016/j.corsci.2011.10.014 ⇑ Corresponding author. Tel.: +61 7 3365 3748. E-mail address: [email protected] (A. Atre The influence of alloying on the ignition and flammability was studied. One end of a cylindrical specimen was exposed to a free diffusion flame. Ignition required at least partial melting. Burning extinguished once th...

Samples of gaseous and solid species taken from the central axis of a 1 megawatt heat-input natural gas flame were tested in vitro for mutagenic activity and teratogenic potential. Mutagenicity was determined by a Salmonella typhimurium forward mutation assay. Potential teratogenicity was indicated by the ability of samples to interfere with the attachment of mammalian cells to a lectin coated ...

Numerical simulations have been carried out for spontaneous ignition of pressurized hydrogen release directly into air. Results showed a possible mechanism for spontaneous ignition due to molecular diffusion. To accurately calculate the molecular transport of species, momentum and energy in a multi-component gaseous mixture, a mixture-averaged multi-component approach was employed in which ther...