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October 8, 2018, 08:41 |
CFX heat transfer not working
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#1 |
New Member
Israel
Join Date: Sep 2018
Posts: 3
Rep Power: 8 |
Many Thanks |
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October 8, 2018, 08:55 |
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#2 |
Senior Member
urosgrivc
Join Date: Dec 2015
Location: Slovenija
Posts: 365
Rep Power: 12 |
Did you make all the needed interfaces and turned on heat transfer in the second tab in the interface settings?
You need to specify fluid-solid connections otherwise these are not connected ... (..later in time) Ok I see you have made connections Outlet could be just pressure opening And I am not sure jet why there is no trn.files created .. (..later in time) Ok it is working now I have decreased the mesh size from 4mm to 2mm as it was really coarse It would be good to add some inflation layers on the fluid walls I have merged both bodies into one part to obtain a conformal mesh at the interface Changed the outlet to opening Initialize the velocity of water to 50mm/s in the correct direction I have set solid timescale factor to 100 Last edited by urosgrivc; October 8, 2018 at 09:59. |
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October 10, 2018, 10:37 |
Initial temperature of the copper pipe
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#3 |
New Member
Israel
Join Date: Sep 2018
Posts: 3
Rep Power: 8 |
I made the changes that you suggested
and it seem that the initial condition of the pipe isn't set, i.e the pipe start at final temperature of the water 20 C, and not in it initial temperature 90 C |
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October 10, 2018, 19:25 |
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#4 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,867
Rep Power: 144 |
Setting initial conditions is very basic stuff. Have a look at the CFX tutorials for how to set up initial conditions.
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Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum. |
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cfx, heat tranfer, tube |
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