[shock77]

I think it was at 8e-5 seconds, if I remember correctly. At least somewhere in this range, I have already deleted the case.


Yeah the momenTransport folder must be new, I dont know this one. Also I dont work with the newer versions so I cannot help you with that. Also the error is not helpfull.


I didnt use the setFields folder, I just waited until it converges. It was stable enaugh although the velocity wasnt zero.


At least it is possible, you just have to transfer it to your version somehow.

[Malkocoglu]

Originally Posted by shock77

I think it was at 8e-5 seconds, if I remember correctly. At least somewhere in this range, I have already deleted the case.


Yeah the momenTransport folder must be new, I dont know this one. Also I dont work with the newer versions so I cannot help you with that. Also the error is not helpfull.

I didnt use the setFields folder, I just waited until it converges. It was stable enaugh although the velocity wasnt zero.


At least it is possible, you just have to transfer it to your version somehow.

constant/momentumTransport and constant/thermophysicalProperties files have been in OF versions for a while. But I do not know the exact reason for being different files from constant/transportProperties and constant/turbulenceProperties. By the way, I tried your files and settings with OF v8 instead of my currrent version OF-dev) and it seems to work uninterruptedly (at least for the first 1e-5 secs). But OF v8 needed constant/momentumTransport and constant/thermophysicalProperties as well, it did not begin running until I put these files in /constant directory.

I will keep this run going until it explodes (hopefully never happens) and see what happens. The case is arranged as inviscid; I do not know what will become if I run with turbulence model.

I expect to give some outputs if I can maintain the actual run.

Thank you again @shock77, your contribution is invaluable. And as I always said, please do not disappear on the forum; probably I will need to confer with you again.

Best,
Malkocoglu

[shock77]

Glad it works so far and that I could help.


I hope it doesnt blow up!


Keep up the good work and have a nice start in the new year.




And I will stay here in this forum for a while I guess haha.

[Malkocoglu]

Originally Posted by shock77

Glad it works so far and that I could help.


I hope it doesnt blow up!

Keep up the good work and have a nice start in the new year.

And I will stay here in this forum for a while I guess haha.

Thank you @shock77 for the good wishes. I hope the same for you.

I run the case with OF8 which is different from my older one. It did not blow for 15e-5 seconds and I interrupted.

On the other hand, when I checked the boundary conditions that given by you, they correspond to Mach 1.5 whereas my case has 2.95. Similarly, pressure ratio and temperature values in your modified files are around 10 and 200 K, respectively. In my situation, these values should be around 150-160 and 100-110 K, again respectively. Then, I guess that my temperature is so low that it reaches 0 or its near values.

Best,
Malkocoglu

[Malkocoglu]

Originally Posted by Malkocoglu

Thank you @shock77 for the good wishes. I hope the same for you.

I run the case with OF8 which is different from my older one. It did not blow for 15e-5 seconds and I interrupted.

On the other hand, when I checked the boundary conditions that given by you, they correspond to Mach 1.5 whereas my case has 2.95. Similarly, pressure ratio and temperature values in your modified files are around 10 and 200 K, respectively. In my situation, these values should be around 150-160 and 100-110 K, again respectively. Then, I guess that my temperature is so low that it reaches 0 or its near values.

Best,
Malkocoglu

So, if the case files still stay in your computer, could you adjust the case in a way that Mach 2.95 and jet total pressure ratio 150? Because when I do that, the case insists to blow. And you solved with rhoCentralFoam, right?

[shock77]

Hi again,


unfortunately I have deleted the case.


Do you still have troubles with that? That might be due to negative temperatures. Also when it comes to low temperatures, the sutherland law might be not applicable. You should check that for your gas!

[Sakun]

Hi ,


did you mange to solve your issue, if so can provide the solution? cause i am having the same phenomena for my steady-state compressor blade simulation.