cfd-pbm模拟油水两相分散：计算中出现Divergence in Luo Breakup kernel

[cultivate]

连续相：水；分散相：硅油（αd=0.01v%）。油在水中分散。速度进口，压力出口。湍流模型选SST K-w。用PBM模拟液滴直径分布。
Fluent的Mesh Quality:（网格质量）

Minimum Orthogonal Quality = 4.58757e-01 cell 63512 on zone 14 (ID: 119996 on partition: 0) at location (-1.46837e-03 -3.11654e-04 2.62275e-01)
(To improve Orthogonal quality , use "Inverse Orthogonal Quality" in Fluent Meshing,
where Inverse Orthogonal Quality = 1 - Orthogonal Quality)

Maximum Aspect Ratio = 3.17826e+01 cell 63834 on zone 14 (ID: 881495 on partition: 12) at location ( 3.37841e-05 -1.15102e-02 2.24530e-01)

PBM设置如下：离散法求解，7个bins，比例指数为2.4，给定的最小分散相粒径为0.4mm,破碎和聚并和均为luo模型。

Bin Sizes for oil (7) :-
Bin Number Bin Size (mm)

Bin-0 11.143047
Bin-1 6.4
Bin-2 3.6758347
Bin-3 2.1112127
Bin-4 1.2125733
Bin-5 0.69644045
Bin-6 0.4

计算过程中发散，提示如下：
Error at Node 14:

Divergence in Luo Breakup kernel.
Please stop iterating and check solution - parent dia = 1.114305e-02, daughter dia = 3.258247e-03!!

有路过的大佬帮忙看看不？卡了好久，不知怎么解决？提前谢谢了~