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通过对大加速度场中层流燃烧室流场的数值计算,建立了大加速度场中二维层流燃烧的数学模型,对控制方程组进行离散,采用SIMPLE算法和交错网格设计并调试程序,对丙烷和空气在大加速度场中的预混燃烧过程进行了数值模拟。计算结果表明,沿燃烧室轴线方向的大加速度场确实会对预混火焰的速度场和温度场等产生明显影响。
Based on the numerical calculation of the flow field in the laminar flow combustor in a large acceleration field, a mathematical model of two-dimensional laminar flow combustion in a large acceleration field is established. The control equations are discretized. The SIMPLE algorithm and the staggered grid design and debugging program are used. Propane and air were numerically simulated in a premixed combustion process in a large acceleration field. The calculation results show that the large acceleration field along the axis of the combustion chamber does have a significant effect on the velocity field and the temperature field of the premixed flame.