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Old   June 10, 2011, 07:52
Default Question about velocity vectors
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Khalid Baker
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Hi to all I need to plot velocity vectors as curves instead of vectors using the option display>vectors is this can be done?
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Old   June 10, 2011, 13:34
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Why not use streamlines if you want curves?
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Old   June 11, 2011, 02:55
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I use velocity vectors because I want to see the velocity profiles in every section of the pipe as curves I think streamlines cannot show the velocity profiles?
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Old   June 14, 2011, 17:36
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Velocity vectors are tangential to the streamline curves. So streamlines show the direction in which the fluid is moving. If you like to have vectors, you can increase their number (depending on your memory) and decrease their size proportionately to capture the flow profile in the curved sections of the pipe. This is how people make recirculation etc. display.
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Old   June 15, 2011, 04:43
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OK how I can use streamline option? I cannot find similar option for it? Is it available in display menu?
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Old   June 15, 2011, 16:47
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I remember Display->Contours->Velocity->Stream Function. I am unable to verify it now as my simulation is running and it takes almost 15 minutes to stop and restart it again. Sorry about that. Also, streamlines might work only for 2D simulations in Fluent. If yours is 3D, may be path line is a better option (http://jullio.pe.kr/fluent6.1/help/html/ug/node950.htm).
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