Combustion of CWM Droplets. 1st Report, Ignition and Combustion Processes of Flying Droplets.

Combustion of Unsupported Methanol/dodecanol Mixture Droplets at Low Gravity

Experiments are reported on the combustion of free or unsupported methanol/dodecanol mixture droplets in a reduced gravity environment. The experiments were conducted in a drop tower. The Grashof number (based on drop diameter) in the moving frame of reference was on the order of 10 -5 for the period of droplet burning. Combustion of the mixture droplets was characterized by a multi-stage proce...

NUMERICAL FLUID DYNAMICS AND COMBUSTION STUDY OF EMULSIFIED CANOLA OIL DROPLETS IN A SWIRL PROMOTED COMBUSTION CHAMBER A Dissertation by

Combustion characteristics of primary reference fuel (PRF) droplets: Single stage high temperature combustion to multistage •Cool FlameŽ behavior

We report experiments and detailed numerical modeling of mixtures of primary reference fuel (PRF) droplets consisting of n -heptane and iso -octane with initial droplet diameters of 0.5 and 3.51 mm. The results show a quasi-steady, low temperature (or “Cool Flame” ( CF )) droplet burning mode that stems from a varying two-stage chemical kinetic behavior of the combustion chemistry. The simulati...

A Study of Cavitation - Ignition Bubble Combustion

We present the results of an experimental and computational study of the physics and chemistry of cavitation-ignition bubble combustion (CIBC), a process that occurs when combustible gaseous mixtures are ignited by the high temperatures found inside a rapidly collapsing bubble. The CIBC process is similar to that in a diesel engine. However, the length scales are very small (μm to nm) and the t...

Phase Changes in Boron Ignition and Combustion

The ignition of electrically heated boron filaments in air and argon/oxygen mixtures has been studied. Boron filament resistance, temperature, and emissions from the BO and BO2 bands were monitored. Preliminary experimental data have also been obtained to characterize the phases formed inside burning boron particles produced and ignited from the same filament material by feeding a vibrating bor...