[luckyboy]

Hi, engineers
I'm simulating a case of compression ignition of hydrogen. However, the result shows that hydrogen will go out after fast heat releasing shortly, as the attchments(pictures) show. The attachment(hydrogenDI.zip) is the input files and can you help check what problem is there?
Thanks!

[nitesh.attal]

Originally Posted by luckyboy

Hi, engineers
I'm simulating a case of compression ignition of hydrogen. However, the result shows that hydrogen will go out after fast heat releasing shortly, as the attchments(pictures) show. The attachment(hydrogenDI.zip) is the input files and can you help check what problem is there?
Thanks!

Hello,

Do you have any O2 left for combustion during the period where mass of H2 is increasing (after TDC)?
If the answer to the above question is yes, please send the case setup to support@convergecfd.com using your official email address.

Thanks,

[luckyboy]

Originally Posted by nitesh.attal

Hello,

Do you have any O2 left for combustion during the period where mass of H2 is increasing (after TDC)?
If the answer to the above question is yes, please send the case setup to support@convergecfd.com using your official email address.

Thanks,

Thank you very much. It is caused by no O2.
there is another question. when I use MPICH2 as parallel tool to calculate the case, there is a error as attachment shows. Do you know why?

[nitesh.attal]

Originally Posted by luckyboy

Thank you very much. It is caused by no O2.
there is another question. when I use MPICH2 as parallel tool to calculate the case, there is a error as attachment shows. Do you know why?

What did you change to get this error (asking this because you were able to run the case earlier)?
(a) Do you get the error if you run on more than one processor?
(b) What is the value of mpi_write_flag in inputs.in (try running with mpi_write_flag=0)?
(c) Can you reproduce this error on one of our example case?

Thanks,