[Mfaizan]

Hi all,

I set the total pressure monitor at inlet to monitor my solution during run in cfx solver manager.

I set 1.4MPa total pressure at inlet but the graph is showing 0MPa. I don't know how to fix y-axis of graph? Picture is attached.

I know its basic question but I am a beginner. It is very important for me. Please help if anyone know....

thanks

[Antanas]

Originally Posted by Mfaizan

Hi all,

I set the total pressure monitor at inlet to monitor my solution during run in cfx solver manager.

I set 1.4MPa total pressure at inlet but the graph is showing 0MPa. I don't know how to fix y-axis of graph? Picture is attached.

I know its basic question but I am a beginner. It is very important for me. Please help if anyone know....

thanks

Please show your inlet condition and expression for monitor.

[Mfaizan]

Hi antanas,

- My initial condition at inlet set to total pressure 1.4MPa with total temp 550 deg Centigrade.

- Fluid model set to Total energy.(supersonic flow)

- Expression for pressure monitor at inlet

= areaAve(Total Pressure)@inlet

Please suggest.

Thanks

[Antanas]

Originally Posted by Mfaizan

Hi antanas,

- My initial condition at inlet set to total pressure 1.4MPa with total temp 550 deg Centigrade.

- Fluid model set to Total energy.(supersonic flow)

- Expression for pressure monitor at inlet

= areaAve(Total Pressure)@inlet

Please suggest.

Thanks

OK. Please post screenshots of your domain basic settings tab, your inlet boundary details tab and your initialization or post CCL file.

[bharath]

Hi Mfaizan
In your screen shot it is not 0 MPa.Please click your cursor on the Monitor line to get the actual value.
You can adjust your monitor point range by right click on the solver window -> Monitor properties ->Range settings ->adjust Lower bound & Upper bound Value.

[Antanas]

Originally Posted by bharath

Hi Mfaizan
In your screen shot it is not 0 MPa.Please click your cursor on the Monitor line to get the actual value.
You can adjust your monitor point range by right click on the solver window -> Monitor properties ->Range settings ->adjust Lower bound & Upper bound Value.

Yes I think this is because of initial pressure and reference pressure values. So it seems that it is zero.

[Mfaizan]

dear bharat,

thanks a lot for your assistance.

Yes after changing range I saw the 1.4MPa value but it I am still confused that with constant 1.4MPa total pressure boundary condition at inlet why this large negative value of pressure is appearing in the model. I checked the lowest value by putting my cursor on the monitor and it is showing -1.7e7. This is crazy. If you can assist then please explain this.

One more question that how can I change the X-axis settings of the pressure monitor tab.

Please reply.

[ghorrocks]

When the simulation is partially converged the results can show anything. Don't worry about crazy intermediate results - the final converged solution is all that matters.

[Mfaizan]

Thanks ghorrocks!