It seems that a big range of values to me, and makes me confused. Can anyone clarify it?
If you can provide a variety of heat transfer coefficient at different scenarios (different w/c, wind speed, humidity et al.), will be grateful.
I appreciate your help.
I want to use this value for modelling thermal transfer in concrete with Abaqus. It's also called Film Coefficient in Abaqus.
Hi,
As you said, heat transfer coefficient of concrete is highly dependent on the environmental conditions like wind speed, humidity etc. However, for ABAQUS modeling, you may coarsely use 12 J / m2.s.K. [J = Joule, m = meter, s = second, K = Kelvin].
If you want to know the theory behind it, you may have a look to Zhu Bofang's Thermal stresses and temperature control of mass concrete book and the attached paper.
Article Thermal conductivity and heat transfer coefficient of concrete
Thanks so much, Halil. Your comments and suggestions are useful to me for the modelling. May I ask that do you have experience in using coupled temperature-pore pressure displacement modeling in Abaqus? I'm a freshman on it, and tried to learn that from the example'Permafrost thawing-pipeline interaction', please see http://50.16.176.52/v6.14/books/exa/default.htm
However, the fully coupled analysis file 'buried_pipe_permafrost_ctcup.inp' doesn't work through when I import to Abaqus.
Please help if you know. Thanks.
Hi Zhigen,
I'm glad your modelling going well. Unfortunately, I've never studied about coupled temperature-pore pressure displacement. But, I've little experience about coupled temperature-displacement in ABAQUS. There are some tips and notes inside the .inp file, did you notice them?
Halil.
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