Modeling Chemical Reactions in fuel cycle diesel with Fluent-chemkin CFD coupling
 

Dear network;
Is there anyone simulate before a full cycle diesel engine combustion ( n-heptane) with details mechanism in Ansys Fluent coupled with Chemkin CFD.
After simulated about 200 crank angle from the cycle, I tried that about many times but always I have a problem with divergence as per following error:
Flow time = 0.02526388888888935s, time step = 959, crank angle =
587.3750000000041deg
999041 more time steps
Updating solution at time level N... done.
Updating mesh at time level N... done.
iter continuity x-velocity y-velocity z-velocity energy k epsilon o2 h2o c7h16
time/iter
15970 1.4288e+00 1.2466e-02 6.7102e-02 5.9806e-02 2.0645e-04 3.9016e-03
7.1111e-03 3.4619e-04 1.3554e-01 0.0000e+00 0:00:31 30
turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 558 cells
reversed flow in 98 faces on pressure-inlet 46.
turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 489 cells
reversed flow in 84 faces on pressure-outlet 45.
reversed flow in 67 faces on pressure-inlet 46.
turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 474 cells
.
.
Error: display-object: No rendering surfaces have been set.
Error Object: #f

Please help me how to solve this issue
can you please guide me about some research paper already achieve to coupling Fluent-Chemkin CFD for full cycle diesel engine simulation
Thanks in advance
Best regards

Modeling Chemical Reactions in fuel cycle diesel with Fluent-chemkin CFD coupling

can you share idea about this topic please
Thanks in advance

Dear Forum, CFD researcher, Fluent User;
Please guide me, I need your opinion
thanks in advance