[Ahmed Saeed Mansour]

Hello, attached the snapshot of the 2 warning messages ...Could anyone tell me how I can fix the problem? Thanks

[aja1345]

I think that you should specify initial value in your simulation(this is just a idea)..Do you consider this case?

[Ahmed Saeed Mansour]

I am going to check it out and tell you sir, thanks..

[Ahmed Saeed Mansour]

You are right sir thanks a lot...but what about the second warning message? Thanks

[Ahmed Saeed Mansour]

Okay I have solved the second too...I have to set the transient results tab...but I have to set monitors to watch the static pressure with flow time...I have set the point but I want the results to be written in a file..Do you know how is this? Thanks

[Ahmed Saeed Mansour]

After the run I got this error..what is the problem?
Thanks

[aja1345]

Originally Posted by Ahmed Saeed Mansour

Okay I have solved the second too...I have to set the transient results tab...but I have to set monitors to watch the static pressure with flow time...I have set the point but I want the results to be written in a file..Do you know how is this? Thanks

I think that it is as follows:

Areaavrage(pressure)@inlet

This is just a idea!

But if you study the following document, you can set monitors to watch the static pressure with flow time:

[Ahmed Saeed Mansour]

Originally Posted by aja1345

I think that it is as follows:

Areaavrage(pressure)@inlet

This is just a idea!

But if you study the following document, you can set monitors to watch the static pressure with flow time:

Download

Thank you very much ! but the link doesn't work.. please try to tell me the solution of the problem in the snapshot....Many thanks

[aja1345]

I attache again:

[Ahmed Saeed Mansour]

Thanks, the link works..but what about the error of the snapshot? thanks

[aja1345]

Originally Posted by Ahmed Saeed Mansour

Thank you very much ! but the link doesn't work...please send the file to 12317@eng.asu.edu.eg and please try to tell me the solution of the problem in the snapshot....Many thanks

Now I have not available to CFX...But you check the following cases:

1. I think that you are using periodic rotational condition. if so, you check axis of periodic rotational that is right or not. and consider rotational axis of turbine that rotational direction is ok or not.

2. of periodic rotational faces is or not? if it is not , you use method. consider this case.

3. Consider that mesh quality is good or not.

These cases are my experience and just a idea!

4. in last, have a look in the following link:

http://www.cfd-online.com/Wiki/Ansys...gence_criteria

[Ahmed Saeed Mansour]

Thanks a lot, but how can I check out the axis of periodic rotational, and the mesh of periodic faces? thanks again...the mesh is fine...it has been generated by ICEM, ansys mesh and turbogrid.

[aja1345]

[Ahmed Saeed Mansour]

Thanks, I will try it and tell you sir!
Many thanks...You are so helpful..

[Ahmed Saeed Mansour]

I have fixed the error but the cfx stop running...Do you think this is because the elements are over 2 million elements and I am running it on my pc?

[aja1345]

Yes. quality mesh can affect on your simulation.

1. You see the following video in youtube. I think that help to you. This video is about centrifugal pump.

https://www.google.com/url?sa=t&rct=...29759880,d.bGs

2. Also study the following paper(PDF Available):
https://www.researchgate.net/publica...sing_ANSYS-CFX



3. Search in forum and google and other sites. There are many thread and document is about centrifugal pump.

[Ahmed Saeed Mansour]

Thanks, I am working on it...

[Ahmed Saeed Mansour]

I have solved this error by the initialize tab in solution.

[Ahmed Saeed Mansour]

Hello, I have got a warning message " CFX license doesn't allow using parameters, the results may be affected by this and the solver may run in an unaccepted behavior"
what is the problem please? thanks

[-Maxim-]

those last two error messages are self-explaining. I guess that's why no one answers here anymore...