可燃多孔介质堆积状态下热特性的模拟研究

Numerical simulation of the thermal performance for combustible porous media stored in stack is conducted in this work. Influences of the array of boxes, the position of windows and the temperature of inflow on the thermal performance of combustible porous media are analyzed under different conditions. The results show that when the temperature of inflow becomes low, the highest temperature of the storehouse also becomes low. And therefore, the media stored in stack becomes safer. If the height of the front window ventilator is defined, a highest value of boxes stored in stack exists, which is interrelated with the position of the front window ventilator. Compared with the back window ventilator, the front window ventilator is more important to the flow field. The height of the front window ventilator should not be very large, otherwise the heat exchange between the inflow and the boxes can not be carried out fully. As a result, it is unfavorable to the storage of the mrdia. Reliable reference to the safety of media stored in stacks is presented in this paper.