开发了贴体曲线坐标系下煤粉燃烧全过程模拟程序,可在任意3-d贴体曲线坐标系下进行炉内气固流动,化学反应和辐射传热等完整的燃烧过程模拟.对某台670t/h锅炉,采用了一种新的贴体曲线网格体系,其一族网格线从燃烧器喷口向外呈放射状展开,最外侧贴于炉膛壁面,燃烧器以上网格线扭转角度逐渐变化,至炉膛上部与壁面平行.计算结果与采用常规直角网格体系的结果相比,伪扩散误差明显减小,燃烧参数分布趋势接近实际分布.
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