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利用控制容积法和ＰＩＳＯ算法对床上面具有受迫气流经过的水平碳粒填充床，从点火开始到稳态传播的整个阴燃过程进行了数值模拟．模型中包括三个异相反应和一个气相反应过程．计算表明：直径为１ｍｍ、空隙率为０．２６０、空气流速为０．０１ｍ／ｓ的水平床，当点火温度为９００Ｋ时，将不会产生明火．碳粒的堆积方式即填充床的空隙率对阴燃影响较大：空隙率越大，阴燃传播的峰值温度越高，传播速度越大．在一定范围内，床面上方的空气流速对阴燃传播影响不大．
The controlled volume method and the PISO algorithm were used to simulate the entire smoldering process from igniting to steady-state propagation of a horizontal packed bed of carbon particles with forced airflow over bed. The model includes three out of phase reactions and one gas phase reaction process. Calculations show that a flat bed with a diameter of 1 mm, a porosity of 0.260 and an air flow rate of 0.01 m / s will not generate an open flame when the ignition temperature is 900 K. The packing way of carbon particles, ie, the porosity of the packed bed, has a greater influence on smoldering: the larger the porosity, the higher the peak temperature of smoldering propagation and the greater the propagation speed. Within a certain range, the air velocity above the bed has little effect on the smoldering spread.