锅炉炉膛出口烟速偏差的数值模拟

Numerical Simulation of Furnace Exit Gas Velocity Difference

作者开发了１ 套锅炉燃烧过程的计算程序，并应用该程序对一试验炉膛的烟速偏差进行了数值模拟。结果得到：炉膛旋转气流中心沿炉膛高度向左侧偏移；当反正向动量流率矩之比为１．２ 左右时，锅炉炉膛出口左右两侧的烟速偏差得到消除。该数值模拟与试验所得数据完全一致。

Authors write a program of simulating a boiler combustion precess. The gas velocity difference of a test boiler about left right two sides is calculated by the programme. The authors obtained the results, which were the rotated gas center of the furnace flow field was biased to the left along with the increase of furnace height, which was the minus positive momentum torque ratio equals to about 1.2 the velocity difference nearly disappeared. The calculation data is very agreement with test one. Figs 4, tables 3 and refs 6.