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-   -   Ring of particles? (trying to set up multiphase) (http://www.cfd-online.com/Forums/cfx/79557-ring-particles-trying-set-up-multiphase.html)

zmaxcomputer August 26, 2010 20:53

Ring of particles? (trying to set up multiphase)
 
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

mvoss August 27, 2010 03:49

how did you set the position of the particles so fare?

neewbie

ghorrocks August 27, 2010 06:46

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.

zmaxcomputer August 27, 2010 10:10

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!

ghorrocks August 28, 2010 06:48

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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