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Old   July 26, 2002, 09:37
Default Candle combustion problem
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Bob
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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?
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Old   July 26, 2002, 09:39
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Bob
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PS any tips on how I model the candles in build as they are the fancy spiral grooved ones?
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Old   July 26, 2002, 10:08
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Suspicious
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I would suspect that there are probably too many candles for even CFX to model .....
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Old   July 26, 2002, 10:27
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TheOneOnTheRight
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How many candles are required to be modelled - sounds like its around 40? I would imagine you would have enough wind for that
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Old   July 26, 2002, 10:57
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Bob
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given its firey name do you think Phoenics would be a more suitable application then if CFX isn't up to the job?
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Old   July 26, 2002, 11:00
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Bob
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Maybe there is room for a vertical application here - "CFX-Candle"?
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Old   July 26, 2002, 11:47
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TheOneOnTheRight
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I heard that there was a new "hot air" CFD code on the market, think its called Glondefiled3D - might like to look into it?
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Old   July 26, 2002, 11:48
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Suspicious
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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".
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Old   July 26, 2002, 12:00
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Bob
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heard its pretty good myself
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Old   July 26, 2002, 12:03
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Suspicious
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Ah yes, but I've heard the support level is rather crap on it. Not overly "responsive".
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Old   July 26, 2002, 12:06
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Bob
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whats support?
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Old   August 5, 2002, 13:00
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Sudar Vatsyayan
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I think that a real time experiment would work out much cheaper that the simulation on CFX or FLUENT.
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Old   August 6, 2002, 05:41
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matej
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Bob, happy birthday (never mind the CFD )! matej
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