Vasudevan Raghavan

TL;DR: In this article, an experimental and numerical investigation of unconfined methane-oxygen laminar premixed flames was conducted using pure methane and pure oxygen mixtures having different equivalence ratios.

TL;DR: In this paper, a fundamental study to investigate the emission characteristics of ethanol-blended fossil fuels is presented, employing a heterogeneous experimental setup, emissions are measured from diffusion flames around spherical porous particles, and a simplified theoretical analysis has been carried out to determine equilibrium surface temperature, composition of the fuel components in vapor phase and heat of reaction of each blend.

TL;DR: In this article, a simple scheme for the estimation of average thermo-physical properties has been presented, which is successfully employed in the empirical correlations available in standard combustion text books for estimation of burning rate constants and flame stand-off distances in the combustion of liquid and solid fuels.

TL;DR: In this article, a numerical model with a multi-step chemical kinetics mechanism, variable thermo-physical properties, multi-component species diffusion and a radiation sub-model is employed for this purpose.

TL;DR: In this paper, the effects of gravity on aiding, opposing and perpendicular flow are presented for methanol diffusion flames burning under three different configurations with respect to the directions of forced and natural convective flow fields for zero and normal gravity conditions.