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Ring of particles? (trying to set up multiphase)

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Old   August 26, 2010, 20:53
Question Ring of particles? (trying to set up multiphase)
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max
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Hi! I am trying to have my particles enter a pipe/vessel in a "ring". I have used a bunch of trial and errors with no luck. The cone injection options i thought would work didnt (point cone, hollow cone, ring cone, full cone). I figure i must be doing something wrong.

Thanks for all your time!

-max
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Old   August 27, 2010, 03:49
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Matthias Voß
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how did you set the position of the particles so fare?

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Old   August 27, 2010, 06:46
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Glenn Horrocks
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I have recently done a model where I wanted the particles injected in a line of over 1000 points. There seems to be a limit of about 25 points when doing it by CCL, so the only way is by using a fortran routine to set the locations. Then you can stick them whereever you like.
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Old   August 27, 2010, 10:10
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Hi!

25 points is more than enough for me. I used both a full cone and a ring cone method. I also tried an annulus (changing the inner and outer radius). still i can not get a "ring" of approx 25 points. Is there a way to set up the points where i want them exactly for the 25 points without writing code?

i can upload some screen-shots if it will help.

thanks again!
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Old   August 28, 2010, 06:48
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Define each injection point as a cone with zero angle. Each injection point has its location defined to go around the ring. This can all be done in CFX-Pre or CCL so no fortran.
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