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Cannot visualize temperature field in nature convection case |
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June 20, 2019, 09:05 |
Cannot visualize temperature field in nature convection case
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#1 |
Member
Eren
Join Date: Aug 2018
Posts: 86
Rep Power: 9 |
Hello again dear foamers!
I am using buoyantBoussinesqSimpleFoam for a natural convection case, where left wall is heated in a square domain and dT=0.00005. I can visualize the U, velocity profile fits the original profile yet I can't see any temperature difference in the domain. I tried to change the scale(since it is reaaaally low) inside the paraFoam, still nothing. So I checked iteration folders, all the values inside the T files are 300(for all steps), which is internal field temperature(uniform), so there is no temperature change inside the computational domain. But, driving force is temperature difference so I have to see something. Any help would be great, Thanks. Eren. |
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June 24, 2019, 08:45 |
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#2 |
Member
Eren
Join Date: Aug 2018
Posts: 86
Rep Power: 9 |
So I checked iteration folders again, both Temperature BC's are also shown as 300 K. But as I said one of them is actually 300.00005 K in my 0/T file. I can't think of any physical reason for this. It must be something else, like, OpenFoam does not take e-5 into account in iteration folders or something like that.
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June 25, 2019, 07:05 |
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#3 |
Senior Member
Zander Meiring
Join Date: Jul 2018
Posts: 125
Rep Power: 8 |
You would likely need to turn up the writePrecision field in controlDict
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June 25, 2019, 15:43 |
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#4 |
Member
Eren
Join Date: Aug 2018
Posts: 86
Rep Power: 9 |
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natural convection, temperature |
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