采用ALE算法，选用与流动方向较一致的网格体系，对四角切向燃烧煤粉锅炉炉膛内冷态流场进行了模拟。
The cold flow field in the tangential firing boiler furnace is numerically studied by using ALE algorithm together with a grid system which is consistent with the flow direction in the furnace.
分析表明：强力旋压毛坯件的变形流动主要是轴向变形，影响成形质量的因素主要是成形过程中的径向变形和切向变形。
The results indicate that the deformation flow of power spinning is mainly axial deformation, the radial deformation and circumferential deformation have an impact on the forming quality.
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