The simulation results show that when preheated air temperature increases the maximum temperature gets larger, the temperature gradient becomes lower and the flame length longer.
模拟计算结果表明，提高空气预热温度，炉内温度的峰值相应增大，温度梯度降低，温度分布更均匀，火焰更长。
With increasing the thickness, the temperature gradient in thickness direction is larger for the same cooling intensity, which would affect the uniformity of the microstructure in strip.
同时还表明随着带钢厚度增加，超快速冷却条件下厚度方向的温度梯度显著增大，对于带钢内部组织的均匀性将产生不利的影响。
The temperature difference variation of model boundary shows the space gradient of temperature field, and the larger boundary temperature difference requires higher order.
模型边界的温差变化表现了温度场的空间梯度，越大的边界温差需越高的计算阶数。
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