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.

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。

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It is based on physical component and body-fitted coordinate (PCBFC), and applies arbitrary Lagrangian Eulerian (ALE) method to realize the grid moving.

程序基于物理组成贴体坐标系(PCBFC)，结合任意拉格朗日欧拉坐标法(ale)实现网格的移动。

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