Correlation of the droplet burning rate in rotatory natural convection

Thermal and fluid flow analyses of hydrocarbon liquid droplet evaporation and combustion in natural convection and in rotation are carried out numerically and experimentally. The regression of the liquid droplet square diameter and the evolution of the liquid droplet temperature in rotatory natural convection are determined numerically by using the implicit finite difference method and Thomas algorithm. Comparison between numerical and experimental results shows qualitative and quantitative satisfactory agreement. Correlation expressing the burning rate in the function of Dgheim, Prandtl, and Grashof numbers is proposed. This correlation takes into consideration the burning of the heptane liquid droplet in rotatory natural convection.