[Anna Tian]

Hi,

I'm modeling the 3D aircraft wing. But when I change the material from ideal gas to constant gas and deselect the energy equation, I got the error message as below.

Updating solution at time level N... done.
iter continuity x-velocity y-velocity z-velocity nut time/iter
24565 2.3463e-05 9.2823e-08 5.5400e-08 3.2518e-07 5.0943e-06 0:01:39 50

999999 (..\src\mpsystem.c@1172): mpt_read: failed: errno = 10054

999999: mpt_read: error: read failed trying to read 8 bytes: Invalid argument
MPI Application rank 0 exited before MPI_Finalize() with status -1073741819
The fl process could not be started.



Btw, I use SA model. And everything was normal when I run the simulation with ideal gas and clicking on the energy equation selection.


May I ask what does the error message mean and how to model case in Fluent by constant gas?