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-   -   Candle combustion problem (http://www.cfd-online.com/Forums/cfx/19090-candle-combustion-problem.html)

Bob July 26, 2002 09:37

Candle combustion problem
 
Its my birthday fairly soon and I'm concerned about the airflow required that will be required to blow out the candles on my cake - as there will be quite a few candles. Having used CFD to succesfully model the watering can spouts we design I'm now looking to perform some preliminary CFD simulations to determine if I have enough wind to blow out ALL of the candles. Does anyone have any experience in this kind of complex physical modelling involving combustion?

Bob July 26, 2002 09:39

Re: Candle combustion problem
 
PS any tips on how I model the candles in build as they are the fancy spiral grooved ones?

Suspicious July 26, 2002 10:08

Re: Candle combustion problem
 
I would suspect that there are probably too many candles for even CFX to model .....

TheOneOnTheRight July 26, 2002 10:27

Re: Candle combustion problem
 
How many candles are required to be modelled - sounds like its around 40? I would imagine you would have enough wind for that:)

Bob July 26, 2002 10:57

Re: Candle combustion problem
 
given its firey name do you think Phoenics would be a more suitable application then if CFX isn't up to the job?

Bob July 26, 2002 11:00

Re: Candle combustion problem
 
Maybe there is room for a vertical application here - "CFX-Candle"?

TheOneOnTheRight July 26, 2002 11:47

Re: Candle combustion problem
 
I heard that there was a new "hot air" CFD code on the market, think its called Glondefiled3D - might like to look into it?

Suspicious July 26, 2002 11:48

Re: Candle combustion problem
 
I'd imagine that CFX-Candle would require doing a large amount of meshing to begin with - too time consuming for serious CFD folk, looking to get results on a real "problem".

Bob July 26, 2002 12:00

Re: Candle combustion problem
 
heard its pretty good myself

Suspicious July 26, 2002 12:03

Re: Candle combustion problem
 
Ah yes, but I've heard the support level is rather crap on it. Not overly "responsive".

Bob July 26, 2002 12:06

Re: Candle combustion problem
 
whats support?

Sudar Vatsyayan August 5, 2002 13:00

Re: Candle combustion problem
 
I think that a real time experiment would work out much cheaper that the simulation on CFX or FLUENT.

matej August 6, 2002 05:41

Re: Candle combustion problem
 
Bob, happy birthday (never mind the CFD :o)! matej


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