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-   -   Streamline help needed! (diagram attached) (http://www.cfd-online.com/Forums/fluent/100277-streamline-help-needed-diagram-attached.html)

dom April 23, 2012 02:05

Streamline help needed! (diagram attached)
 
Hi all,

I am currently doing a simulation of jet fan systems in an underground parking lot. The idea is to generate a flow profile. However, this is what I got:

http://img641.imageshack.us/img641/3200/diagramn.png
Uploaded with ImageShack.us

The streamline does not 'exit' the fans as predicted and they only stay within the fans themselves. Any idea why this is the case?

Many thanks in advance!

shaoda169 April 23, 2012 05:14

Hi,

Did you release the 'particles' from your inlet?

dom April 23, 2012 22:21

No I didn't. How do I go about doing that?

Many thanks!

zbyhu April 23, 2012 22:33

in the geometry tab you choose start from: and then your inlets
and if the streamlines are too short, you should increase limits in the limits tab

dom April 23, 2012 23:35

Thanks for the swift reply zbyhu, I have already selected the inlets, and that results from the diagram was what I got... Any idea where the problem might be?

zbyhu April 23, 2012 23:37

It's right there in CFD-Post, when you set choose to set streamlines. On the left.

dom April 23, 2012 23:43

I have already done that.. I selected all the inlets, and still the result was the same. Any idea what might be the problem?

zbyhu April 23, 2012 23:44

Could you maybe post a higher resolution screenshot? Can't figure much from that one..

dom April 23, 2012 23:50

Alright hang on mate, just gotta let it finish rendering (changed a few settings), see if that works..:)

dom April 23, 2012 23:56

Here it is: As you can see, the streamlines don't 'exit' the fan into the environment, which is really bugging me:confused:

http://img593.imageshack.us/img593/7865/diagramy.png
Uploaded with ImageShack.us


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