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Old   July 18, 2005, 08:40
Default Heat transfer in a pipe
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Walid
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Hi

I carry out a simulation on pipe flow and I am wondering in the laminar sub-layer is there a considerable variation in temperature field as may exist in velocity???

I would be appreciated if any one can help me.

Walid
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Old   July 18, 2005, 17:49
Default Re: Heat transfer in a pipe
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Robin
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It won't be the same as your velocity variation, but if you have a temperature gradient, it will be resolved within the viscous sub-layer (if you have enough near wall resolution and are running a k-omega type model, such as SST).

-Robin
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Old   July 19, 2005, 06:18
Default Re: Heat transfer in a pipe
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andrew
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I can give you some advice about heat exchanger simulation. I read all your messages posted here about heat exchanger. Can we share information via mail . please let me know a mail where I can write to.
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Old   July 19, 2005, 12:03
Default Re: Heat transfer in a pipe
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Walid
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Hi Robin

Your hints are logical and have a sense. I wrote a code in which I ignored the temperature difference but this may not a case for very difficult cases such a boiler or evaporator.

Thank you for your contribution

Regards Walid
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Old   July 19, 2005, 12:05
Default Re: Heat transfer in a pipe
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Walid
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Hi

It is walidch4@yahoo.com.

Regards

Walid
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