It is found that generally the simulated values are in agreement with the DNS data in most flow regions, except in the near-wall region.
与DNS的统计值相比，除了近壁区之外，在流场的大部分区域，模拟值与精确的统计值基本一致。
The reverse flow region is observable near the pipe wall.
管壁附近存在明显的回流再附区；
The cascade aerodynamic performance is obviously improved in the region of middle blade, but the improvement of the cascade aerodynamic performance is not clear near the end wall region.
叶栅气动性能的改善主要在靠近叶展中部区域，而对角区核心区和端部区域的影响并不明显。
The experimental results show that the radial profiles of local slip velocity are non-uniform :flat in the central region and steep in the region near the wall.
实验结果表明，提高颗粒循环速率，在任一径向位置的气固滑落速度均增加；
The wall function is used in the near wall region.
对固壁面采用了壁函数。
The three-layer and two-layer wall function were applied to prediction of flow in the near wall region.
近壁区处理分别采用两层和三层壁面函数。
The three-layer and two-layer wall function were applied to prediction of flow in the near wall region.
近壁区处理分别采用两层和三层壁面函数。
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