dpm，喷雾旋转模型，求助

lzd阿东

在旋转喷雾的过程中算到3000多步时出现了这样的错误，我设置了俩个喷嘴，开始结束时间差1s，时间步长为1e-4，步数为2500，迭代20次，出现这样的错误有点不清楚意思，意思是我的时间步数错了吗，还是说颗粒太多了，网格出问题了，最后

1.5254% of the total discrete phase mass was not tracked for the expected residence time:
0.00685 s less on a mass-weighted average (which is 20.3688% of their total age or 13.6920% of the last time step).
You may be able to reduce this discrepancy by increasing the maximum number of time steps used to compute a single particle trajectory.

                               
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