Calculating and Plotting Nusselt Number with ParaView
Hi!
I have been working with OpenFOAM and some GUI (Helyx-OS). Am simulating cases with conjugated heat transfer and I would like to Plot the Nusselt Number with ParaView, however I don't know how to calculate it with OpenFOAM. I do can calculate the Nusselt Field in ParaView, but I can't Plot it over a line (That's my goal). At the beginning I downloaded the last version of ParaView because the version of OpenFOAM (sudo apt-get install paraviewopenfoam410) cannot use the "Calculator application" properly. So I downloaded the binary files from www.paraview.org. Now what I need is to plot the Nusselt Number over a line, but it does not let me do it with my Calculated Nusselt. |
Greetings Tom,
I have no idea if you've managed to solve this issue already or not, but if you haven't, please provide more information, namely:
Best regards, Bruno |
finding Nusselt number in paraview
Good evening Bruno,
i dont have any idea how to calculate derivatives and integrations in paraview. If you know how to calculate Nusselt number and Mean Nusslet number? please let me know. Thanks |
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I am new to ParaView, could you explain to me how to get the or values from Paraview? I have a cylinder and need to know the dissipated heat through its external surface. What I would imagine to do: take temperature value of face-center cell of external surface cells; take temperature of respective volume-center cell; calculate its difference corresponding to a gradient in relation to cell size; do this for all external cells areas (integrate it); muliply by conductivity; The problem is that I don't know how to do it with ParaView... :P Thank you! Regards, Lisandro Maders |
I do not know if you can do this with paraview.
You can do it with openfoam tools (wallHeatFlux). |
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Anyway, cheers! :D |
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if you use the openfoam utilities, why you are asking? :) OpenFOAM have the ability that a lot of functions are already there (like the calculation of the gradient of the cell-center and boundary face-center). I do not know if you can do this using paraview (maybe there is some workaround but I do not know it). |
Actually, I was really making mess with this. Long day and I was tired. There is no reason for not using foam utilities, I just forgot everything I learned for some hours haha. But thanks anyway, I could be still struggling with this :)
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