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Old   June 13, 2003, 04:05
Default natural convection
  #1
Juliet
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i will simulate a natural convection by the diffrence of heat and concentration with star-cd, as you know, under natural convection, the energe or mass and momentum conversition equation must be caculated at the same time because of the couple of temperature and velocity , until now i don't know how to make subrutine and how to match it with star-cd. if someone know about this suject or did this invovled work, please contect me or tell me about it without hesitate. thank you!
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Old   June 15, 2003, 05:43
Default Re: natural convection
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Joern Beilke
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Why do you think that you need user coding for running a natural convection case? It should run without for most of the cases.
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Old   June 16, 2003, 08:24
Default Re: natural convection
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4xF
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I agree with Joern. You should define for your material in the folder Thermophysical models & properties -> Liquid & Gases -> Molecular Properties the density to vary according to the isobaric model (Boussinesq approximation) or have density at least as function of temperature (Ideal-f(T)). Then you will have the buoyancy effects you want to simulate (provided that you have switched the gravity on).
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Old   June 17, 2003, 05:03
Default Re: natural convection
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Vlad S
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Hi! Best of you will be completing Tutorial 10 at Pro-Star tutorials. RTFM! Man, I wish you good luck
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