AM06-23-007 乱流微細構造による蒸発液滴の分散及び蒸気混合機構(燃焼・反応流(2),一般講演)

概要

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Direct numerical simulations of evaporating droplets in homogeneous isotropic turbulence have been conducted to clarify the relationships between droplet dispersion, vapor mixing and coherent fine scale eddies (CFSEs) of turbulence. Dispersion of 10^6 droplets and vapor mixing are analyzed for several initial droplet Stokes numbers. The spatial distributions of droplets depend on their Stokes number. The number density of droplet with a particular Stokes number is low near the center of CFSEs and shows the maxima near the radius of the eddy. The distributions of vapor mass fraction are strongly affected by the Stokes number and those on the plane perpendicular to the axis of CFSEs are closely related to the elliptic feature of CFSEs.
日本流体力学会の論文
2006-09-05