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Streamline help needed! (diagram attached)

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Old   April 23, 2012, 02:05
Default Streamline help needed! (diagram attached)
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Dominic Ow
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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:


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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!
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Old   April 23, 2012, 05:14
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Hi,

Did you release the 'particles' from your inlet?
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Old   April 23, 2012, 22:21
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No I didn't. How do I go about doing that?

Many thanks!
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Old   April 23, 2012, 22:33
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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
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Old   April 23, 2012, 23:35
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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?

Last edited by dom; April 23, 2012 at 23:41. Reason: typo
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Old   April 23, 2012, 23:37
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It's right there in CFD-Post, when you set choose to set streamlines. On the left.
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Old   April 23, 2012, 23:43
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I have already done that.. I selected all the inlets, and still the result was the same. Any idea what might be the problem?
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Old   April 23, 2012, 23:44
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Could you maybe post a higher resolution screenshot? Can't figure much from that one..
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Old   April 23, 2012, 23:50
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Alright hang on mate, just gotta let it finish rendering (changed a few settings), see if that works..
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Old   April 23, 2012, 23:56
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Here it is: As you can see, the streamlines don't 'exit' the fan into the environment, which is really bugging me


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flow profile, fluent, jet fan, streamline, velocity

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