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运用贴体坐标系能有效改善切向燃烧锅炉炉内过程数值模拟伪扩散严重的问题，但很难同时考虑屏的布置对气流特性的影响．采用先进的嵌合体网格划分技术可将整个炉膛内的流动在上下两个区域内进行耦合求解。即从冷灰斗到屏下端的区域采用贴体坐标系，从折焰角到水平烟道出口区域采用直角坐标系进行求解，两段重叠区域网格间数值的传递用线性插值的方法来实现。嵌合体网格技术可以避免一些采用单一网格划分所无法避免的冗余的网格节点，从而减少程序运行时间。模拟结果表明，该技术有效改善伪扩散严重问题，同时又能考虑屏的布置对炉内流动特性的影响。
Using the body-fitted coordinate system can effectively improve the numerical simulation pseudo-diffusion of the process numerical simulation of the tangentially fired boiler, but it is difficult to consider the influence of the screen layout on the airflow characteristics at the same time. The use of advanced chimera meshing technology can solve the flow in the entire furnace in the upper and lower regions. That is, from the cold hopper to the lower end of the screen using the body coordinate system, from the flaring angle to the horizontal flue outlet area using rectangular coordinate system to solve the two overlapped area grid value transfer using linear interpolation method to achieve . Chimerism allows you to avoid redundant grid nodes that are unavoidable with a single mesh, thereby reducing program uptime. The simulation results show that this technique can effectively improve the serious problem of pseudo-diffusion and at the same time can consider the influence of screen layout on the flow characteristics in the furnace.