Reg: IC Engine Simulation

[Thamarai Kannan]

Dear All,

I m trying to simulate IC engine using python. There is an example https://cantera.org/examples/python/reactors/ic_engine.py.html in which I tried changing few parameters according to my need  but got some errors which I didn't understand. Can anyone please help me in this. 

  File "/home/lab427/.config/spyder-py3/temp.py", line 167, in <module>

    sim.advance(sim.time + dt)

  File "interfaces/cython/cantera/reactor.pyx", line 964, in cantera._cantera.ReactorNet.advance

CanteraError: 

***********************************************************************

CanteraError thrown by CVodesIntegrator::integrate:

CVodes error encountered. Error code: -1

At t = 0.159111, mxstep steps taken before reaching tout.

Components with largest weighted error estimates:

2: -2.2158447081882616e-19

0: -1.9173347801950228e-19

10: 1.5531935944493587e-19

11: -7.50524250180235e-20

14: -5.0979984943656334e-20

12: 1.3426828558391016e-20

1: 1.2861610881164163e-20

13: -5.546235967205841e-22

9: 1.9577877489614884e-22

8: 1.6951598904963506e-22

***********************************************************************

Thank You,

Thamarai Kannan M

[Pushkar Sheth]

Hello,

I am also facing this issue. The base code on the website runs well but simply changing the mechanism causes the error.

Code from here: Diesel-type internal combustion engine simulation with gaseous fuel — Cantera 3.1.0a2 documentation

https://uwmadison.box.com/s/tnk7thber5v2qm2xqqr4306ekinsvjx9 [converted to cantera format using ck2yaml]

Can anyone help?

Thanks,

Pushkar Sheth