AM06-14-004 ロータリーキルン焼成炉内の熱対流数値シミュレーション(対流(1),一般講演)

概要

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Thermal convection and heat conduction in a rotary kiln are investigated through a numerical flow simulation based on the three-dimensional unsteady Navier-Stokes equations. A rotary kiln furnace is a kind of incinerator, which is applied to incinerate various industrial wastes of solid, liquid and gas condition. When designing this furnace actually, we have to consider two phenomena, thermal convection of gas and heat conduction of solid, simultaneously, although there is a large difference between their timescales. In this study, we employed some numerical techniques in order to overcome this problem. First, a thermal calculation routine is separated into two parts or thermal convection and heat conduction calculations, and thermal modification is carried out on the boundary region between gas and solid. Furthermore, a rotation of the furnace is considered in this simulation, and effects of its rotation to heat transfer are also discussed. Through this simulation, not only three-dimensional flow structures but also thermal distributions in a rotary kiln are solved and visualized.
日本流体力学会の論文
2006-09-05