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Search took 0.00 seconds. Search: Posts Made By: ghorrocks
Forum: CFX July 24, 2011, 06:47
Replies: 28
Views: 6,807
Posted By ghorrocks
I told you what you need. There should be options...

I told you what you need. There should be options like frozen rotor and other rotationing domain types and transient rotor stator.

I seem to vaguely remember you need to set one domain to be...
Forum: CFX July 23, 2011, 06:27
Replies: 28
Views: 6,807
Posted By ghorrocks
The interface model needs to be transient rotor...

The interface model needs to be transient rotor stator to get it to recalculate the GGI each time step. You have selected general interface which is for a fixed interface.
Forum: CFX July 21, 2011, 19:29
Replies: 28
Views: 6,807
Posted By ghorrocks
I have done this type of interface many times, it...

I have done this type of interface many times, it should work fine. There is something specific to your setup which is not working. Need more details to be of further assistance.
Forum: CFX July 18, 2011, 06:43
Replies: 28
Views: 6,807
Posted By ghorrocks
I did not understand your last post and the image...

I did not understand your last post and the image is not readable.

But I explained how this sort of modelling is normally done - determine the mass flow rate versus crank angle. You might be able...
Forum: CFX July 17, 2011, 19:41
Replies: 28
Views: 6,807
Posted By ghorrocks
I have modelled both 4 stroke and 2 stroke...

I have modelled both 4 stroke and 2 stroke engines.

Modelling the exhaust with steady flow is of limited use. Whether it is 2 or 4 stroke you will get much more information out of a transient...
Forum: CFX July 16, 2011, 06:51
Replies: 28
Views: 6,807
Posted By ghorrocks
You will have to set up a fortran function which...

You will have to set up a fortran function which stores the values as the simulation progresses and returns it later in the simulation when required.

I have done many simulations of exhaust...
Forum: CFX July 12, 2011, 18:50
Replies: 28
Views: 6,807
Posted By ghorrocks
If you need to use the value inside the...

If you need to use the value inside the simulation then it has to be fortran.
Forum: CFX July 11, 2011, 19:07
Replies: 28
Views: 6,807
Posted By ghorrocks
I see. As has been said previously you cannot...

I see. As has been said previously you cannot access time history through CEL. You can either write your own fortran routine to do it if you need it in the simulation, or you can use a monitor point...
Forum: CFX July 10, 2011, 19:06
Replies: 28
Views: 6,807
Posted By ghorrocks
No, my first question is why are you doing CFX +...

No, my first question is why are you doing CFX + Transient structural models. I cannot see where FSI is required from what you have described.

You will have to look into workbench parameters to...
Forum: CFX July 10, 2011, 06:41
Replies: 28
Views: 6,807
Posted By ghorrocks
Why do you want to do a transient structural...

Why do you want to do a transient structural model?

I do not understand what you are asking, but isn't the averaged mass flow rate of the engine very close to the swept volume * speed? You will...
Forum: CFX July 7, 2011, 19:04
Replies: 28
Views: 6,807
Posted By ghorrocks
CEL cannot access time the history of variables.

CEL cannot access time the history of variables.
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